Asked by clara
A car leaves an intersection after a light turns green. It starts from rest and reaches a speed of 13.4 m/s in 5.0 s. The radius of a tire of the car is 0.25 mDetermine the average rotational acceleration of the tire.
Answers
Answered by
bobpursley
acceleration=changespeed/time=13.4/5 m/s^2
alpha=acceleration/radius=above/.25
=4*13.4/5 rad/sec^2
average, divide by 2, or wavg=2/5*13.4 rad/sec^2
alpha=acceleration/radius=above/.25
=4*13.4/5 rad/sec^2
average, divide by 2, or wavg=2/5*13.4 rad/sec^2
Answered by
Helpful
find acceleration by dividing 13.4 m/s by 5.0 s. the divide by the radius, .25m
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