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A wheel of diameter 100cm starts from rest and roatates with a constant acceleration of 5.16rad/s2.At the instant the wheel has computed its fifth revolution;compute the radial accelerationof a point on rim.Please reply as early as possible

Vamsi S krishna , 8 Years ago
Grade 11
anser 1 Answers
PASUPULETI GURU MAHESH

Last Activity: 8 Years ago

GIVEN r=0.5m, ANGULAR ACCELERATION=5.6       rad/s2
WE KNOW  THAT  RADIAL ACCELERATION a=V2/R
ANGULAR  ACCELERATION a=ANGULAR VELOCITY /R
5.16=W2/0.5
W2=5.16×0.5
=2.58W =1.60 rad/s2W WE KNOW THAT RADIAL ACCELERATION a=r×(1.60)2 =0.5 =1.28 rad/s2 THEN PNE REVOLUTION RADIAL ACCELERATION a=1.28rad/s2
 THEN 5 REVOLUTIONS  RADIAL  ACCELERATION =5×1.28
                                                                            =6.4

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