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3 years ago

8. A jaguar runs 4200 meters at the speed of 400 meters per minute. How

Physics

1 answer:

ollegr [7]3 years ago

7 0

Answer:

10.5min

Explanation:

Given parameters:

Distance = 4200m

Speed = 400m/min

Unknown:

Time taken for this run = ?

Solution:

Speed is the distance divided by the time taken.

Speed = $\frac{distance }{time }$

Time = $\frac{distance}{speed }$

Now insert the parameters and solve;

Time = $\frac{4200}{400}$ = 10.5min

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Answer:

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Explanation:

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now, extra distance that car will travel in case of sleepy driver will be'

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S_d = 33.3333 m/s × 2.2 sec

S_d = 73.3333 m

hence, number of car of additional car length n will be;

n = S_n / car length

n = 73.3333 m / 5m

n = 14.666 ≈ 15

Therefore, the number of additional car lengths approximately it takes the sleepy driver to stop compared to the alert driver is 15

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