A 2 metric ton body is moving with a velocity of `54 kmh^-1`. Find the change in momentum of the body when it stops. If it stops in 15 seconds, calculate the retarding force.

A motorcycle is moving with a velocity of 90 km//h and it takes 5 second to stop after the brakers are applied. Calculate the force exerted by the brakers on the motorcycle if its mass alongwith the rider is 200 kg

A hockey ball of mass 200 g travelling at 10 ms^( -1) is struck by a hockey stick so as to return it along its original path with a velocity at 5ms^( -1) . Calculate the change in momentum occurred in the motion of hockey ball by the force applied by hockey stick.

A force of 10 N moves a body with a constatn speed of 2ms^-1 . Calculate the power of the body?

A ball of mass 100 g moving with a velocity of 10ms^-1 is stopped by a boy in 0.25sec. Calculate the force applied by the boy to stop the ball.

A particle carrying a charge 5 mu C is moving with a velocity vecv = ( 4 hati + 3 hatk) ms ^(-1) in a magnetic field vec B =( 3 hatk + 4 hati) W bm^(-2). Calculate the force acting on the particle.

A motorcar of mass 1200 kg is moving along a straight line with a uniform velocity of 90km/h. its velocity is slowed down to 18 km/h in 4 seconds by an unbalanced external force. Calculate the acceleration and change in momentum . Also calculate the magnitude of the force required.

A motorcar of mass 1200 kg is moving along a straight line with a uniform velocity of 90km/h. its velocity is slowed down to 18 km/h in 4 seconds by an unbalanced external force. Calculate the acceleration and change in momentum . Also calculate the magnitude of the force required.