A cart changes its speed from 90 m/s to 100 m/s in 10 seconds. During this interval its acceleration is A)zero. B)1 m/s². C)10 m/s². D)none of the above

Question

Quizplus · Accepted Answer

Acceleration is defined as the change in velocity over time. Here, the change in velocity is $100 \, \text{m/s} - 90 \, \text{m/s} = 10 \, \text{m/s}$, and the time taken for this change is 10 seconds. Therefore, acceleration = $ \frac{10 \, \text{m/s}}{10 \, \text{s}} = 1 \, \text{m/s}^2$.

A Cart Changes Its Speed from 90 M/s to 100