Question

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Zach drives his car around a circular section of a road having a radius of 50 meters at a constant speed of 20 m/s. What is the centripetal acceleration of Zach's car?
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Answer 1

Explanation:

centripetal acceleration-

$= {v}^{2} \div r \\ = 20 \times 20 \div 50 \\ = 400 \div 50 \\ = 8mpersecsquare$

Answer 2

Answer:

Given:- radius of circular section = 50m

speed of Zach's car = 20m/s

we need to find centripetal acceleration of Zach's car

solution:

we now

centripetal acceleration = v^2/r

= 20^2/50

= 20×20/50

= 20×2/5

= 40/5

therefore, centripetal acceleration= 8m/s.