a stationary wheel starts rotating about its own axis at an angular ac

1.	a stationary wheel starts rotating about its own axis at an angular acceleration 5.5 rad per sec^2.to acquire an angular velocity 420 revolutions per minute,the number of rotations made by the wheel is
Answer» EXPLANATION: Wf=420rpm =420×2pie÷60 rad/sec. alpha=5.5rad/sec^2 wf^2=2alpha×theta 196pie^2=11theta theta is ALSO = 2pieN so,196pie^2=11×2×pie×N therefore by SOLVING we GET N=28

a stationary wheel starts rotating about its own axis at an angular acceleration 5.5 rad per sec^2.to acquire an angular velocity 420 revolutions per minute,the number of rotations made by the wheel is

Answer»

EXPLANATION:

Wf=420rpm

=420×2pie÷60 rad/sec.

alpha=5.5rad/sec^2

wf^2=2alpha×theta

196pie^2=11theta

theta is ALSO = 2pieN

so,196pie^2=11×2×pie×N

therefore by SOLVING we GET N=28

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a stationary wheel starts rotating about its own axis at an angular acceleration 5.5 rad per sec^2.to acquire an angular velocity 420 revolutions per minute,the number of rotations made by the wheel is

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