# Does constant speed mean no acceleration?

#### Understand the Problem

The question is asking whether maintaining a constant speed implies that there is no acceleration involved in the movement. This relates to concepts in physics regarding motion, speed, and acceleration.

If a body is moving with constant speed in a straight line, then it has no acceleration. However, if the body is moving with constant speed in a circle, it does have acceleration.

If a body is moving with constant speed in a straight line, then it has no acceleration. However, if the body is moving with constant speed in a circle, it does have acceleration due to the change in direction.

If a body is moving with constant speed in a straight line, then it has no acceleration. However, if the body is moving with constant speed in a circle, it does have acceleration due to the change in direction.

This distinction arises because acceleration measures the change in velocity. While speed is a scalar quantity, velocity is a vector and includes direction. Therefore, a change in direction at constant speed results in acceleration.

#### Tips

A common mistake is confusing speed with velocity. Remember that acceleration pertains to changes in velocity, which includes direction as well as magnitude.

#### Sources

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