A 50,000 kg train is rolling on its own down the track at 5 m/s. You grab the rope trailing behind it, and exert a stopping force of 2000 N. How
long does it take to stop the train? Be sure to show all work including
knowns, unknowns, formula and correct answer with proper units and
significant figures: *

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

The ability to make things happen is also called a. heat b. force c. matter d. energy

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical