Physics
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Easy
Question
A given object takes n times more lime to slide down 450 roagh inclin a practly smooth incline. The cofficient of kinetic function between the object and the incline is
The correct answer is:
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physics
A car travelling at a speed of 30kmh is bought to a halt in 8 metros by applying brakes. If the same car is travelling at 60kh it can be bought to a halt with the same breaking power in
A car travelling at a speed of 30kmh is bought to a halt in 8 metros by applying brakes. If the same car is travelling at 60kh it can be bought to a halt with the same breaking power in
physicsGeneral
physics
A 7 kg object is subject to two forces (in newton) 
30j and 
The magnitade of resulting acceleration in ms-2 will be
A 7 kg object is subject to two forces (in newton) 30j and The magnitade of resulting acceleration in ms-2 will be
physicsGeneral
physics
A block of mass 4 kg is placed on a rough horizontal plane. A time dependent force F=Kt2 acts on a block, when 
of friction between the block and the plane at t=2s is.....
A block of mass 4 kg is placed on a rough horizontal plane. A time dependent force F=Kt2 acts on a block, when of friction between the block and the plane at t=2s is.....
physicsGeneral
physics
A particle of mass 2 kg is initially at rest. A force acts on it whose magnitude changes with time. The force time graph is shown below The velocity of the particle after 10s is
A particle of mass 2 kg is initially at rest. A force acts on it whose magnitude changes with time. The force time graph is shown below The velocity of the particle after 10s is
physicsGeneral
physics-
For the figure
For the figure
physics-General
physics
A solid sphere of mass 2 kg is resting inside a cube as shown in the figure. The cube is moving with a velocity 
Here is the time in second. All surfaces are smooth. The sphere is at rest with respect to the cube. what is the total force exerted by the sphere on the cube(g=10ms-2)
A solid sphere of mass 2 kg is resting inside a cube as shown in the figure. The cube is moving with a velocity Here is the time in second. All surfaces are smooth. The sphere is at rest with respect to the cube. what is the total force exerted by the sphere on the cube(g=10ms-2)
physicsGeneral
physics-
A projectile A is the thrown at an angle of 
to the horizontal from point P. At the same time, another projectile B is thrown with velocity 
upwards from the point Q vertically below the highest point. For B to collide with A, 
should be-
A projectile A is the thrown at an angle of to the horizontal from point P. At the same time, another projectile B is thrown with velocity upwards from the point Q vertically below the highest point. For B to collide with A, should be-
physics-General
physics-
A particle of mass m moves along line PC with velocity v as shown. What is the angular momentum of the particle about P?
A particle of mass m moves along line PC with velocity v as shown. What is the angular momentum of the particle about P?
physics-General
physics-
Two forces each numerically equal to 10 dynes are acting as shown in the following figure, then the resultant is –
Two forces each numerically equal to 10 dynes are acting as shown in the following figure, then the resultant is –
physics-General
physics
Three Forces F1 and F2 together keep a body in equillibrcium. If F1 =3 N along the positive X axis F2 =4 N along the positive Y. axis, then the third force F3 is
Three Forces F1 and F2 together keep a body in equillibrcium. If F1 =3 N along the positive X axis F2 =4 N along the positive Y. axis, then the third force F3 is
physicsGeneral
physics-
A boat moving upstream with velocity 3 
w.r.t. ground. An observer standing on boat observes that swimmer 'S' is crossing the river perpendicular to the direction of motion of boat. If river velocity is 4m/s & swimmer crosses the river width 100 m in 50 sec then -
A boat moving upstream with velocity 3 w.r.t. ground. An observer standing on boat observes that swimmer 'S' is crossing the river perpendicular to the direction of motion of boat. If river velocity is 4m/s & swimmer crosses the river width 100 m in 50 sec then -
physics-General
physics-
Vector 
in figure represents –
Vector in figure represents –
physics-General
physics-
The resultant of the three vectors 
, 
and 
shown in figure is –
The resultant of the three vectors , and shown in figure is –
physics-General
physics-
Two forces, each numerically equal to 5 N, are acting as shown in the figure. Then the resultant is-
Two forces, each numerically equal to 5 N, are acting as shown in the figure. Then the resultant is-
physics-General
physics-
For the vectors 
and 
shown in figure = 
and || = 10 units while 
then the value of R = 
is nearly –
For the vectors and shown in figure = and || = 10 units while then the value of R = is nearly –
physics-General
