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A bar on a hinge starts from rest and rotates with an angular acceleration α =...

A bar on a hinge starts from rest and rotates with an angular acceleration α = 15 + 8t, where α is in rad/s2 and t is in seconds. Determine the angle in radians through which the bar turns in the first 4.90 s.

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Answer #1

Data given:

angular acceleration = 15 + 8t.

where angular acceleration is in rad/s^2 and t = time in seconds

Conditions used for finding integration constat: at t= 0,     and at t= 0,      as rod starts from rest

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