A 5 kg block accelerates across a horizontal surface at 7 m/s^2 when you exert a 60 N force on it. What is the force of friction on the block (Ffs/b)?
If you don’t mind finding the kinetic friction coefficient too?

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.