A 51.0 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 250 N . For the first 10.0 m the floor is frictionless, and for the next 11.0 m the coefficient of friction is 0.21. What is the final speed of the crate?

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided