Reviewed CSCA Physics question · Easy

A 3 kg object is pushed by a net force of 12 N. What is its acceleration?

0.25 m/s^2
4 m/s^2
15 m/s^2
36 m/s^2

Show the answer and explanation

Correct answer

B. 4 m/s^2

Principle or equation

Newton's second law: F_net = m a, so a = F_net / m.

Why this answer is correct

a = 12 N / 3 kg = 4 m/s^2.

Example

A 5 kg object with net force 20 N accelerates at 4 m/s^2.

This published item includes a stored explanation and passed the platform’s publication workflow. It is independent preparation material, not a claim of an official or recalled examination question.

Related practice questions

Easy · MechanicsA car accelerates uniformly from rest and covers 100 m in 10 s. What is its acceleration?Easy · MechanicsA 2 kg object is pushed by a net force of 8 N. What is its acceleration?Standard · MechanicsA 0.5 kg ball moving at 4 m/s collides head-on and sticks to a 1.5 kg ball at rest. What is the…Easy · MechanicsA 1 kg object is dropped from rest from a height of 20 m. What is its speed just before hitting the…Easy · MechanicsA ball is dropped from rest from a height of 45 m. Neglecting air resistance, how long does it take to reach…