2.What is the weight of an object that has a mass of 5 kg?

Rohit is trying to tune an instrument

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?