A car starts at rest then accelerates at a constant rate to 11.9 m/s in 10.0 seconds. It then slows to 1.5 m/s during the next 5.0 seconds. To the nearest hundredth of a m/s 2 , what is the average acceleration during the first 10.0 seconds?
See previous post: Wed, 2-26-14, 9:07 PM.
To find the average acceleration during the first 10.0 seconds, we can use the formula for average acceleration:
average acceleration = (final velocity - initial velocity) / time
In this case, the initial velocity is 0 m/s because the car starts at rest, the final velocity is 11.9 m/s, and the time is 10.0 seconds. Plugging these values into the formula, we get:
average acceleration = (11.9 m/s - 0 m/s) / 10.0 s
= 11.9 m/s / 10.0 s
= 1.19 m/s^2
Therefore, the average acceleration during the first 10.0 seconds is approximately 1.19 m/s^2.