Question

In which situation would a bicycle rider NOT be accelerating?

If her direction changed and speed was constant.
If her speed decreased.
If her direction and speed were unchanged.
If her speed increased and direction was unchanged.

Answer 1

If her direction and speed were unchanged.

Step-by-step explanation:

Acceleration is a vector, so it has magnitude and direction.

If direction changes, acceleration exists.

If speed changes, acceleration exists.