A baseball is thrown by the center (velder from shoulder level) to home plate wh

Question

A baseball is thrown by the center (velder from shoulder level) to home plate where it is caught (on the fly at shoulder level) by the catcher. At what point does the magnitude of the vertical component of velocity have its minimum value (air resistance is negligible) at the top of the just after leaving the center hand magnitude of vertical component of velocity is constant just before arriving at the mitt A 0.30-m radius automobile fire accelerates from rest at a constant 20 rad/s^2 over a 5.0 interval. What is the tangential component of acceleration for a point on the outer edge of the during the interval 6.7 m/s^2 0.60 m/s^2 0.30 m/s^2 33 m/s^2

Explanation / Answer

23.

magnitude of the vertical component of velocity have its minimum value is at top of trajectory (maximum height,

so velocity is minimal). vertical component of velocity will be 0 at top of trajectory. (option a)

24.

tangential component of acceleration,

a = alpha*r = 2*0.3

a = 0.6 m/s^2 (option b).

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