SOLUTION: the wheel of a cart is making 5revolutions per second. if the diameter of the wheel is 84 cm find the speed of cart in km/hr.

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Question 966308: the wheel of a cart is making 5revolutions per second. if the diameter of the wheel is 84 cm
find the speed of cart in km/hr.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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the wheel of a cart is making 5revolutions per second.
if the diameter of the wheel is 84 cm
find the speed of cart in km/hr.
:
find the distance the wheel travels in 1 sec.
d = pi%2A84%2A5
d = 1319.47 cm which is 1319.4/100 = 13.1947 meters in 1 sec
Find the speed in km/hr (3600 sec in 1 hr)
s+=+%283600%2A13.1847%29%2F1000
s = 47.5 km/hr