1. If a 40 kg person is accelerating at 10 m/s2, then the force acting on him or her is 400 N

A. true or B. false

2. How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2?

A. 62 N

B. 62 kg

C. 120 N

D. 120 kg

3. What is the acceleration of a 30 kg object when 180 N of force is applied to it?

A. 6.0 m/s2

B. 60 m/s2

C. 210 m/s2

D. 5,400 m/s2

4. Which of the following equations show how you would solve for mass if you knew the force acting on an object & the acceleration of an object?

A. m=f/a

B. m = fa

C. m=a/f

D. m=f-a

Question

Francis

Physics

24 June, 20:07

1. If a 40 kg person is accelerating at 10 m/s2, then the force acting on him or her is 400 N

A. true or B. false

2. How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2?

A. 62 N

B. 62 kg

C. 120 N

D. 120 kg

3. What is the acceleration of a 30 kg object when 180 N of force is applied to it?

A. 6.0 m/s2

B. 60 m/s2

C. 210 m/s2

D. 5,400 m/s2

4. Which of the following equations show how you would solve for mass if you knew the force acting on an object & the acceleration of an object?

A. m=f/a

B. m = fa

C. m=a/f

D. m=f-a

+2

Answers (1)

Know the Answer?

Astro · Answer 1

In all of the questions, we apply Newton's second law that:

Force = mass x acceleration

1) A. True

2) C, 120 N; F = 60 x 2 = 120N

3) A, 6 m/s²; a = F/m = 180/30 = 6

4) A; F = ma → m = F/a