The kinetic energy of an object of mass 3.5 kg is 112 J. Its speed is?
1 answer:
You might be interested in
Maybe the picture helps. The blue block represents the cart with a mass of 3 kg. The person(black block) is pulling the cart to the right with a force F so that the acceleration a is 2 m/s². According to Newton's 2nd law: F = m*a.
