Question

A rocket sled accelerates from 10 m/s to 40 m/s in 2 seconds. What is the average acceleration of the sled?

Answer 1

15m/s²

Step-by-step explanation:

Given parameters:

Initial velocity = 10m/s

Final velocity = 40m/s

Time taken = 2s

Unknown:

Average acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time;

Acceleration =
`(Final velocity - Initial velocity )/(time)`

Acceleration =
`(40 - 10)/(2)` = 15m/s²