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professor190 [17]
3 years ago
12

A race car starts from rest and accelerates uniformly to 69 mph in 4.5 s.

Physics
1 answer:
Marizza181 [45]3 years ago
5 0
For this question we should apply
a = v^2 - u^2 by t
a = 69 - 0 by 4.5
a = 69 by 4.5
a = 15.33
a = 6.85 m/s^2

If the answer in option is near to answer then , you can mark it as correct.
.:. The acceleration is 6.9 m/s^2
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E=U+K
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