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A racecar makes 24 revolutions around a circular track of radius 2 meters in

162 seconds. Find the racecar's frequency

User Viruzzo
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1 Answer

1 vote

Answer:


0.15\: \mathrm{Hz}

Step-by-step explanation:

The frequency is of an object is given by
f=(1)/(T), where
T is the orbital period of the object.

Since the racecar makes 24 revolutions around a circular track in 162 seconds, it will take the racecar
(162)/(24)=6.75\:\mathrm{s} per revolution.

Therefore, the frequency of the racecar is
(1)/(6.75)=\fbox{$0.15\:\mathrm{Hz}$} (two significant figures).

The radius of the track is irrelevant in this problem.

User Jim Mack
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5.4k points