What normal force is supplied by a desk to a 2.00 kg box sitting on it?

39.2N
9.80N
0N
19.6N

What are two different ways you could find the value of a? explain these methods.

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.