Physics-
General
Easy

Question

A particle moves in a circle of radius 30 blank c m. Its linear speed is given by v equals 2 t where t in second and vin m divided by s. Find out its radial and tangential acceleration at t equals 3 blank s e c respectively

  1. 220 blank m divided by sec to the power of 2 end exponent invisible function application blank comma blank 50 m divided by s e c to the power of 2 end exponent  
  2. 100 blank m divided by sec to the power of 2 end exponent invisible function application blank comma blank 5 m divided by s e c to the power of 2 end exponent  
  3. 120 blank m divided by sec to the power of 2 end exponent invisible function application blank comma blank 2 m divided by s e c to the power of 2 end exponent  
  4. 110 blank m divided by sec to the power of 2 end exponent invisible function application blank comma blank 10 m divided by s e c to the power of 2 end exponent  

The correct answer is: 120 blank m divided by sec to the power of 2 end exponent invisible function application blank comma blank 2 m divided by s e c to the power of 2 end exponent


    a subscript T end subscript equals fraction numerator d v over denominator d t end fraction equals fraction numerator d over denominator d t end fraction open parentheses 2 t close parentheses equals 2 m divided by s to the power of 2 end exponent
    a subscript c end subscript equals fraction numerator V to the power of 2 end exponent over denominator r end fraction equals fraction numerator open parentheses 2 cross times 3 close parentheses to the power of 2 end exponent over denominator 30 cross times 10 to the power of negative 2 end exponent end fraction equals 120 blank m divided by s to the power of 2 end exponent

    Related Questions to study

    General
    Physics-

    An airplane, diving at an angle of 53.0 degree with the vertical releases a projectile at an altitude of 730 m. The projectile hits the ground 5.00 s after being released. What is the speed of the aircraft?

    An airplane, diving at an angle of 53.0 degree with the vertical releases a projectile at an altitude of 730 m. The projectile hits the ground 5.00 s after being released. What is the speed of the aircraft?

    Physics-General
    General
    Physics-

    A solenoid has 2000 turns wound over a length of 0.30 m. The area of its cross-section is 1.2 cross times 10 to the power of negative 3 end exponent m to the power of 2 end exponent. blankAround its central section a coil of 300 turns is wound. If an initial current of 2 A in the solenoid is reversed in 0.25s, the emf induced in the coil is

    A solenoid has 2000 turns wound over a length of 0.30 m. The area of its cross-section is 1.2 cross times 10 to the power of negative 3 end exponent m to the power of 2 end exponent. blankAround its central section a coil of 300 turns is wound. If an initial current of 2 A in the solenoid is reversed in 0.25s, the emf induced in the coil is

    Physics-General
    General
    Physics-

    The alternating voltage induced in the secondary coil of a transformer is mainly due to

    The alternating voltage induced in the secondary coil of a transformer is mainly due to

    Physics-General
    parallel
    General
    Physics-

    In a coil rate of change of area is 5 blank m to the power of 2 end exponent divided by m i l l i blank s e c o n d and current between becomes 1 a m p from 2 blank a m pin 2 cross times 10 to the power of negative 3 end exponent blank s e c. If magnitude of field is 1 blank t e s l a inductance of the coil is

    In a coil rate of change of area is 5 blank m to the power of 2 end exponent divided by m i l l i blank s e c o n d and current between becomes 1 a m p from 2 blank a m pin 2 cross times 10 to the power of negative 3 end exponent blank s e c. If magnitude of field is 1 blank t e s l a inductance of the coil is

    Physics-General
    General
    Physics-

    An inductance L and a resistance R are first connected to a battery. After some time the battery is disconnected but L and R remain connected in a closed circuit. Then the current reduces to 37% of its initial value in

    An inductance L and a resistance R are first connected to a battery. After some time the battery is disconnected but L and R remain connected in a closed circuit. Then the current reduces to 37% of its initial value in

    Physics-General
    General
    Physics-

    A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A, the efficiency of the transformer is approximately

    A transformer is used to light a 100 W and 110 V lamp from a 220 V mains. If the main current is 0.5 A, the efficiency of the transformer is approximately

    Physics-General
    parallel
    General
    Physics-

    In the diagram shown if a bar magnet is moved along the common axis of two single turn coils A and B in the direction of arrow

    In the diagram shown if a bar magnet is moved along the common axis of two single turn coils A and B in the direction of arrow
    Physics-General

    General
    Physics-

    A square loop of side 22 blank c m is converted into circular loop in 0.4 s. A uniform magnetic field of 0.2 blank T directed normal to the loop then the e m f induced in the loop is

    A square loop of side 22 blank c m is converted into circular loop in 0.4 s. A uniform magnetic field of 0.2 blank T directed normal to the loop then the e m f induced in the loop is

    Physics-General
    General
    Physics-

    A rectangular loop is being pulled at a constant speed v, through a region of certain thickness d, in which a uniform magnetic field B is set up. The graph between position x of the right hand edge of the loop and the induced emfEwill be

    A rectangular loop is being pulled at a constant speed v, through a region of certain thickness d, in which a uniform magnetic field B is set up. The graph between position x of the right hand edge of the loop and the induced emfEwill be
    Physics-General

    parallel
    General
    Physics-

    A metallic ring connected to a rod oscillates freely like a pendulum. If now a magnetic field is applied in horizontal direction so that the pendulum now swings through the field, the pendulum will

    A metallic ring connected to a rod oscillates freely like a pendulum. If now a magnetic field is applied in horizontal direction so that the pendulum now swings through the field, the pendulum will
    Physics-General

    General
    Physics-

    In an ideal transformer the number of turns of primary and secondary coil is given as 100 and 300 respectively. If the power input is 60 blank W, the power output is

    In an ideal transformer the number of turns of primary and secondary coil is given as 100 and 300 respectively. If the power input is 60 blank W, the power output is

    Physics-General
    General
    Physics-

    Two stones are projected with same velocity v at an angle thetaand left parenthesis 90 degree minus theta right parenthesis. If H and H subscript 1 end subscript are greatest heights in the two paths, what is the relation between R comma blank Hand H subscript 1 end subscript?

    Two stones are projected with same velocity v at an angle thetaand left parenthesis 90 degree minus theta right parenthesis. If H and H subscript 1 end subscript are greatest heights in the two paths, what is the relation between R comma blank Hand H subscript 1 end subscript?

    Physics-General
    parallel
    General
    Physics-

    A fighter plane enters inside the enemy territory, at time t equals 0 with velocity v subscript 0 end subscript equals 250 blank m s to the power of negative 1 end exponent and moves horizontally with constant acceleration a equals 20 m s to the power of negative 2 end exponent (see figure). An enemy tank at the border, spot the plane and fire shots at an angle theta equals 60 degree with the horizontal and with velocity u equals 600 blank m s to the power of negative 1 end exponent. At what altitude H of the plane it can be hit by the shot?

    A fighter plane enters inside the enemy territory, at time t equals 0 with velocity v subscript 0 end subscript equals 250 blank m s to the power of negative 1 end exponent and moves horizontally with constant acceleration a equals 20 m s to the power of negative 2 end exponent (see figure). An enemy tank at the border, spot the plane and fire shots at an angle theta equals 60 degree with the horizontal and with velocity u equals 600 blank m s to the power of negative 1 end exponent. At what altitude H of the plane it can be hit by the shot?
    Physics-General

    General
    Physics-

    A bullet is to be fired with a speed of 2000 blank m s to the power of negative 1 end exponent to hit a target 200 blank m away on a level ground. If g equals 10 blank m s to the power of negative 2 end exponent, the gun should be aimed

    A bullet is to be fired with a speed of 2000 blank m s to the power of negative 1 end exponent to hit a target 200 blank m away on a level ground. If g equals 10 blank m s to the power of negative 2 end exponent, the gun should be aimed

    Physics-General
    General
    Physics-

    What is the numerical value of the vector 3 stack i with hat on top plus 4 stack j with hat on top plus 5 stack k with hat on top ?

    What is the numerical value of the vector 3 stack i with hat on top plus 4 stack j with hat on top plus 5 stack k with hat on top ?

    Physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.