The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 50 m in a straight line, reaching a final speed of 79 km/h.

Question

Determine the cheetah's average acceleration during the short sprint.
m/s2

Answer 1

convert final speed to m/s

the average speed is half of the final speed
... because the start was from rest

divide the distance by the average speed
... this is the time

divide the final speed by the time
... this is the average acceleration