Question

A car starts from rest and increases its speed to 18 m/s in 22 seconds. What is the cars acceleration

Answer 1

Magnitude of acceleration = (change of speed) / (time for the change)

Change of speed = (speed at the end) - (speed at the start)

Change of speed = (18 m/s) - (0 m/s) = 18 m/s

Time for the change = 22 sec

Magnitude of acceleration = (18 m/s) / (22 sec)

Magnitude of acceleration = 0.818 m/s²