Question
A speedboat increases in speed from 21 m/s to 30.9 m/s in a distance 191 m. Find the magnitude of its acceleration.
Answers
Damon
average speed = (21 +30.9)/2 = 25.95 m/s
so time = 191 m/25.95 m/s = 7.36 seconds
a = change in velocity/change in time
= (30.9-21)/7.36
so time = 191 m/25.95 m/s = 7.36 seconds
a = change in velocity/change in time
= (30.9-21)/7.36