A man of mass m stands on a long flat car of mass M , moving with velocity V.If he now begins to run with velocity u, with respect to the car , in the same direction as V, the the velocity of the car will be

A boy of mass 40 kg stands on a rail road car of mass 60 kg , moving with velocity 10 m//s . Now , the boy begins to run with velocity 5 m//s , with respect to the car , in the same direction , the velocity of the car will be

A girl of mass 50 kg stands on a railroad car of mass 75 kg moving with velocity 20 ms^(-1) . Now , the girl begins to run with a velocity of 10ms^(-1) with respect to the car in the same direction , as that of the car. The velocity of the car at this instant will be

A girl of mass 50 kg stands on a railroad car of mass 75 kg moving with velocity 20 ms^(-1) . Now , the girl begins to run with a velocity of 10ms^(-1) with respect to the car in the same direction , as that of the car. The velocity of the car at this instant will be

A flat car of mass M with a child of mass m is moving with a velocity v_(1) . The child jumps in the direction of motion of car with a velocity u with respect to the car. Find the final velocities of the child and that of the car after jump.

A car of mass 1000 kg is moving with a velocity of 10 m s^(-1) . If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of car at the end of 25 s will be :

a. A rail road car of mass M is moving without friction on a straight horizontal track with a velocity ct. A man of mass m lands on it normally from a helicopter. What will be the new velocity of the car? ltbgt b. If now the man begins to run on it with speed um with respect to car in a direction opposite to motion of the car, what will be the new velocity of the car?

a. A rail road car of mass M is moving without friction on a straight horizontal track with a velocity ct. A man of mass m lands on it normally from a helicopter. What will be the new velocity of the car? ltbgt b. If now the man begins to run on it with speed um with respect to car in a direction opposite to motion of the car, what will be the new velocity of the car?

A motorcylcle is moving with a velocity 80km/hr ahead of a car moving with a velocity of 65 km/hr in the same direction. What is the relative velocity of the motorcyle with respect ot the car:-

A motorcylcle is moving with a velocity 80km/hr ahead of a car moving with a velocity of 65 km/hr in the same direction. What is the relative velocity of the motorcyle with respect ot the car:-

A motorcylcle is moving with a velocity 80km/hr ahead of a car moving with a velocity of 65 km/hr in the same direction. What is the relative velocity of the motorcyle with respect ot the car:-