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## A Thomson’s gazelle can run at very high speeds, but its acceleration is relatively modest. A reasonable model for the sprint of a gazelle a

Question

A Thomson’s gazelle can run at very high speeds, but its acceleration is relatively modest. A reasonable model for the sprint of a gazelle assumes an acceleration of 4.2m/s2 for 6.5s , after which the gazelle CONTINUES at a steady speed.

a. What is the gazelles top speed?

b. A human would win a very short race with a gazelle. The best time for a 30 m sprint for a human runner is 3.6 s. How much time would the gazelle take for a 30 m race?

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Physics
6 months
2021-08-02T07:27:57+00:00
2021-08-02T07:27:57+00:00 1 Answers
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## Answers ( )

Answer:The correct answer will be:

(a)27.3 m/s(b)3.8 sExplanation:According to the question:

Acceleration,Time,(a)The gazelles top speed will be:⇒

or,

(b)As we know,

s = 30 m

Now,

⇒

or,

⇒

On putting the given values, we get

or,