If a car starts at rest and increase to a final velocity of 50 mi/hr north over a time of 5 hours, what is its average acceleration?
a. 10 mi/hr
b. 250 mi/hr
c. 10 mi/hr^2
d. 250 mi/hr^2
a. 10 mi/hr
b. 250 mi/hr
c. 10 mi/hr^2
d. 250 mi/hr^2
2 Answers
Feb 13, 2018
Average acceleration is the change in velocity divided by the change in time
Explanation:
So, if the car starts at rest, the initial velocity is zero. The initial time is also zero.
Then
Feb 14, 2018
Explanation:
Well, acceleration is defined as,
where
Since the car starts at rest, it has a velocity of
So, option