A train is moving along a horizontal track. A pendulum suspended from the roof makes an angle of 4⁰ with the vertical. The acceleration of the train is-ms²(g=10ms²⁾

Three blocks A,B, and C of equal mass m are placed one over the other, one on a smooth horizontal ground as shown in figure. Coefficient of friction between any two blocks of A,B and C is 0.5 What would he the maximum value of mass of block so that the blocks A,B and C move without slipping over each other

A body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be……..

A block of mass 300 kg is set into motion on a frictionless horizontal surface with the help of frictionless pulley and a rope system as shown in figure. What horizontal force F should be applied to produce in the block an acceleration of 1 ms^-1

Maths-

If $f left parenthesis x right parenthesis$ is a polynomial function such that $f space left parenthesis x right parenthesis f space open parentheses 1 over x close parentheses equals f left parenthesis x right parenthesis plus f space open parentheses 1 over x close parentheses text and end text f space left parenthesis 3 right parenthesis equals negative 80 text then end text f left parenthesis x right parenthesis minus f space open parentheses 1 over x close parentheses equals$

A body of mass. 5 kg starts motion form the origin with an initial velocity $Error converting from MathML to accessible text.$ If a constant force $Error converting from MathML to accessible text.$ acts an the body, than the time in which the Y-component of the velocity becomes zero is……

physics-

An L -shaped tube with a small office is held in a water stream as shown in fig. The upper end of the tube is? 10.6cm above the surface of water. What will be the. height of the set of water coming from the office velocity of water stream is 2.45 m/s²

physics-General

Maths-

$f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign left left columnspacing 1em end attributes row cell left square bracket x right square bracket text if end text minus 3 less than x less or equal than negative 1 end cell row cell vertical line x vertical line text if end text minus 1 less than x less than 1 end cell row cell vertical line left square bracket negative x right square bracket vertical line text if end text 1 less or equal than x less or equal than 3 end cell end table text then end text left curly bracket x colon f left parenthesis x right parenthesis greater or equal than 0 right curly bracket equals close$

Same forces act an two bodies of different mass 2 kg and 5 kg initially at rest. The ratio of times. required to acquire same final velocity is…..

An object of mass 3 kg is moving with a velocity of 5 m/s along a stright path. If a force of 12 N is applied for 3 sec on the object in a perpendicular to its direction of motion. The magnitude of velocity of the particle at the end of 3 sec is……..m/s.

A rope which can withstand a maximum tension of 400 N hangs from a tree. If a monkey of mass 30 kg climbs on the rope in which of the following cases-will the rope break? (take g=10 ms² and neglect the mass of rope)

Maths-

Let $g left parenthesis x right parenthesis equals 1 plus x minus left square bracket x right square bracket text and end text f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign left left columnspacing 1em end attributes row cell negative 1 comma text if end text x less than 0 end cell row cell 0 text if end text x equals 0 text then end text fraction numerator f left parenthesis g left parenthesis 2009 right parenthesis right parenthesis over denominator g left parenthesis f left parenthesis 2009 right parenthesis right parenthesis end fraction equals end cell row cell 1 comma text if end text x greater than 0 end cell end table close$

Physics-

A thin liquid film formed between a u-shaped wire and a light slider supports a weight of $1.5 cross times 10 to the power of negative 2 end exponent text end text N$ (see figure). The length of the slider is 30 cm and its weight negligible. The surface tension of the liquid film is.

Surface tension is the phenomenon of a liquid's surface when it comes into contact with another phase. The least amount of surface area is typically acquired by liquids. As a result, the liquid's surface exhibits an elastic sheet-like behavior.
¶The forces of attraction between the particles of liquid and the forces of attraction of solids, liquids, or gases in contact with it affect surface tension. The energy or work requires to remove the molecules of the surface layer in a unit area is roughly equivalent to the energy responsible for the phenomenon of surface tension.

A thin liquid film formed between a u-shaped wire and a light slider supports a weight of $1.5 cross times 10 to the power of negative 2 end exponent text end text N$ (see figure). The length of the slider is 30 cm and its weight negligible. The surface tension of the liquid film is.

Physics-General

Three masses 1 kg and 6 kg and 3 kg are connected to each other with threads and are placed on a table as shown in figure. The acceleration with which the system is moving is-ms²(g=10ms²)