A bicyclist in the Tour de France crests a mountain pass as he moves at 18 km/h. At the bottom, 4.0 km farther, his speed is at

Question

2 years ago

12

75 km/h. What is the average acceleration (in m/s^2) while riding down the mountain?

1 answer:

Allisa [31] · Answer 1 · 2022-04-28T08:15:45+03:00

6 0

We are given:

v0 = initial velocity = 18 km/h

d = distance = 4 km

v = final velocity = 75 km/h

a =?

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We can solve this problem by using the formula:</span>

v^2 = v0^2 + 2 a d

75^2 = 18^2 + 2 (a) * 4

5625 = 324 + 8a