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Naddik [55]
3 years ago
8

A race car makes one lap around a track of radius 180 m in 90.0 s. What is the centripetal acceleration in m/s2?

Physics
1 answer:
kvasek [131]3 years ago
4 0

Answer:

0.9m/s^2 (yours is 0.87, so choose that)

Explanation:

formula for centripetal acceleration:

v^2/r

to find v, we know that f=1/90s, and r=180m.

v=(2pir)/T

v=(2pi(180))/90

v=12.6m/s

now plug into a=v^2/r

a=(12.6)^2/180

a=0.9m/s^2

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