If plank moves down with uniform velocity `20ms^(-1)` then velocity of block A is N times `70m/sec` .Then the value of N is (all strings are inextensible and pullies are mass less)

Find out velocity of block B in the given figure : (all the pulleys are ideal and string are inextensible massless)

In the figure shown the block B moves with , velocity 10 ms^(-1) . The velocity of A in the position shown is

A particle moves with a uniform velocity of 50 m/s for 20 min. What is the velocity of particle at t = 2 min ?

A ball of mass 0.2 kg moves with a velocity of 20m//sec and it stops in 0.1 sec , then the force on the ball is

A ball of mass 0.2 kg moves with a velocity of 20m//sec and it stops in 0.1 sec , then the force on the ball is

A particle of mass 0.6g and having charge of 25 n_(C) is moving horizontally with a uniform velocity 1.2xx10^(4)ms^(-1) in a uniform magnetic field, then the value of the magnetic induction is (g=10ms^(-2))

A particle of mass 0.6g and having charge of 25 n_(C) is moving horizontally with a uniform velocity 1.2xx10^(4)ms^(-1) in a uniform magnetic field, then the value of the magnetic induction is (g=10ms^(-2))

A particle moves in a circle of radius 4 m with a linear velocity of 20ms^(-1) . Find the angular velocity.

A block is thrown with a velocity of 2m//s^(-1) (relative to ground) on a belt, which is moving with velocity 4ms^(-1) in opposite direction of the initial velocity of block. If the block stops slipping on the belt after 4sec of the throwing then choose the correct statements (s)

An object is moving on a plane surface with uniform velocity 10ms^(-1) in presence of a force 10N. The frictional force between the object and the surface is