Answer to Question #125875 in Mechanics | Relativity for Y

Question #125875
2. In 30 s, the crankshaft of a truck engine operating at 2400 rpm turns through how many radians?
1
Expert's answer
2020-07-10T10:22:26-0400

As far, as the truck engine operating at 2400 rpm performns 2400 revolutions per minute, then it will perform 2400/2=12002400/2 = 1200 revolutions during 30 s.

One revolution correspondes to 2π2\pi radians. Thus, during 30 s the truck engine turns through:


N=12002π=2400π7539.8 (radians)N = 1200\cdot 2\pi = 2400\pi \approx 7539.8 \space (radians)

Answer. 2400pi or 7539.8 radians.


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