You have two objects . each is composed of a different element what could you use to identify these elements

An athlete is holding 24 lb of weights at a height of 6 inches above the stack as shown. to lower the weights, she applies a constant force of 5 lb to the handle. determine the velocity of the weights immediately before they hit the stack.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

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