Question

During a drive by golfer Ai Miyazato, the angular velocity of her club is zero at the top of the backswing and 30 rad/s at the bottom of the downswing just before impact with the ball. If the downswing lasts 0.30 s, what is the average angular acceleration of the club during the downswing?
a. 100 rad/s²
b. 10 rad/s
c. 1.0 rev/s²
d. 30 rad/s²
e. 100 °/s²

Answer 1

Answer:

a. 100 rad/$s^{2}$

Explanation:

The aceleration is the velocity divided by the time, in this case we use the velocity to obtain the average aceleration, in an average time as:

$a=\frac{v}{t}=\frac{30 rad/s}{0.3 s} =100 rad/s^{2}$

So, the answer is a= 100 rad/$s^{2}$