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patriot [66]
3 years ago
7

A motorcycle has a constant acceleration of 2.5 m/s2 . Both the velocity and acceleration of the motorcycle point in the same di

rection. How much time is required for the motorcycle to change its speed from (a) 21 to 31 m/s, and (b) 51 to 61 m/s?
Physics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

Answer:

4 seconds both, due to constant acceleration.

Explanation:

Acceleration is speed change over time as magnitude, then for a) a=(31-21)m/s  / t, then we can calculate t as (31-21)m/s  / a = (31-21)m/s  / 2,5 m/s^2 = 4 seconds. b) a=(61-31)m/s  / t, again t=(61-51)m/s  / a=(61-51)m/s  / 2,5 m/s^2 = 4 seconds.

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Answer:

\Delta v=5.77m/s

Explanation:

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4 0
3 years ago
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