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Question

The tangential acceleration of the tip of a blade is 47.13m/s2 and its centripetal acceleration is 473.9m/s2. Find the value of linear acceleration of the tip of the blade. (in m/s2)

A
5×102
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B
4.762×102
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C
4.762×103
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D
4.762×105
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Solution

The correct option is B 4.762×102
The linear acceleration will be resultant of tangential acceleration and centripetal acceleration and angle between both is π2.
So the linear acceleration is given by
alinear=a2t+a2c=(473.9)2+(47.13)2=4.762×102m/s2

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