A person with a mass of 90 kg is standing on a smooth horizontal platform. They throw a rock with a mass of 10 kg horizontally on the same surface. After 10 seconds, if the distance between the person and the rock is 10 meters, what is the kinetic energy of the person?

A 4 kg ball is moving east at 12 m/s and collides in mid-air with a 6 kg ball moving north at 8 m/s. After the collision, the two balls stick together.

What is the magnitude and direction of their velocity immediately after the collision?

If a 15 kg object is subjected to a force of 175 N to the east and another force of 1020 N to the west, what is the object’s acceleration?

A car is initially at rest and accelerates at 4 m/s² for 10 seconds. What is its final velocity?

The x -component of a force of 50 N is 30 N, then what will be the y-component of the same applied force?

A train moves from rest with a constant acceleration of 2 m/s² for 8 seconds. What is its final velocity?

A 2 kg object is subjected to a net force of 14 N. What is the object's acceleration?

A ball is thrown vertically upward with an initial velocity of 20 m/s. How long will it take to reach the highest point? (Assume acceleration due to gravity is 10 m/s²)

A 5 kg object is accelerating at 8 m/s². What is the net force acting on the object?

A machine does 2500 J of work in 1 minute. What is the power developed by the machine?