Question

an object starts at rest and accelerates until it is moving at 247 km/h. if it takes 1.7minutes for this change to occur what is the average acceleration in m/s

Answer 1

The average acceleration in 0.67 m/s^2.

The average acceleration is calculated as change in velocity/time

a=(247*5/18)/(1.7*60)

=68.61/102=0.67 m/s^2

Therefor the average acceleration of the object is 0.67 m/s^2