Question

EQUATIONS: F = m x a a = F/m m = F/a

1. A 50 kg skater pushed by a friend accelerates 5 m/sec2. How much force did the friend apply?
2. A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2. What is the mass of the object?
3. A bowling ball rolled with a force of 15 N accelerates at a rate of 3 m/sec2; a second ball rolled with the same force accelerates 4 m/sec2. What are the masses of the two balls?
4. If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be person’s acceleration?
5. A student starts a food fight by throwing a 0.5 kg burrito at some girl he likes. He throws it kind-of hard so he accelerates it at 3 m/s2 . How much force did this take?
6. A strong sailor pushes a 100 kg barrel with 300 N of force. How much is the barrel accelerated?
7. A batter hits a baseball with 500 N and the ball is accelerated at 25 m/s2. What is the mass of the ball?
8. A 5 kg book rests on a table. How much force is it exerting on the table? (Hint: think about acceleration due to gravity.)

Answer 1

Respuesta:

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