A force of 1200 N acts on a 0.5 kg steel ball as a result of collision lasting 25 ms. If the force is in a direction opposite to the initial velocity of 14 ms, then the final speed of the steel ball would be

A force of 25 N acts on a body at rest for 0.2s and a force of 70 N acts for the next 0.1s in opposite direction. If the final velocity of the body is 5ms^(-1) , the mass of the body is

If a 5N and a 15 N forces are acting opposite to one another . Find the resultant force and the direction of action of the resultant force

A ball moving with velocity 9ms^(-1) collides with another smiliar stationary ball. If after the collision, both the balls move in the directions making an angle of 30^(@) with the initial direction, then their speeds, after collision will be