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Grade: 12

                        

A wheel start rotating from rest is uniformly accelerated with 4rad/s2 for 10s it is then allowed to rotate uniformly for the next 2s and is finally brought to rest in the next 10s find the total angle rotated by the wheel

2 years ago

Answers : (1)

Saurav
224 Points
							
First 10s S =1/2x 4x 100=200
V at t=10  is 4x 10=40
S from 8 to 10 is 40x 2=80
And for 10 to 18 it is similar to 0 to 10
Therefore total  angle rotated is 480°
2 years ago
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