Asked by Yoyo

A cricket ball rotates at 1800 rev/min as it travels through the space in a straight line at 160 km/hr. How many times does it revolve after traveling 20m?

Can someone confirm with me if 13.5 revolutions in 20m is right. That's the answer i got too. If it's wrong can someone please show me how to get to the answer?

Answered by Henry
d = V*t = 20 m = 0.02 km.
160 * t = 0.02.
t = 1.25*10^-4 hr. = 0.45 s. To travel 20
meters.

Rev = 1800rev/60s * 0.45s. = 13.5. Yes!!


Answered by Yoyo
Cheers man. Appreciate it.
Answered by Henry
Glad I could help.
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