In this problem, we need to know Newton's second law of motion:

$\overline{){\mathbf{\Sigma}}{\mathbf{F}}{\mathbf{=}}{\mathbf{m}}{\mathbf{a}}}$

a = dv/dt

We also need to know that:

$\overline{){\mathbf{\sum}}{\mathbf{\tau}}{\mathbf{=}}{\mathbf{I}}{\mathbf{\alpha}}}$

An object has the following two conditions, ∑F = 0 and ∑τ = 0. Which of the following statements can be true?

A. The object is at rest.

B. The object is moving at a constant velocity, and rotating with a constant angular velocity.

C. The object is moving at a constant velocity but it not rotating.

D. The object does not have a translation motion but is rotating at a constant angular velocity.

E. All of the above.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Torque & Acceleration concept. If you need more Torque & Acceleration practice, you can also practice Torque & Acceleration practice problems.