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When using Newton’s 2nd law, draw a free body diagram (Question) An object moves according to...

When using Newton’s 2nd law, draw a free body diagram

(Question) An object moves according to the following equation: Θ (t) = 7t2 + 3t -1, angle in radians and time in seconds.

a. Find the average angular speed from t = 0 to t = 2 seconds.

b. Find the instantaneous speed at t = 2 seconds.

c. Find the average angular acceleration from t = 0 to t = 2 seconds.

d. Find the instantaneous angular acceleration at t = 2 seconds.

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Homework Answers

Answer #1

Instantaneous speed is asked in part b. Probably it is instantaneous angular speed .

a) 17 rad/s

b) 31 rad/s

c) 14 rad/s2

d) 14 rad/s2

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