Question

The center of mass moves with constant acceleration when constant forces act on the object. A gymnast jumps straight up, with her center of mass moving at 5.25 m/sas she leaves the ground. How high above this point is her center of mass at the following times? (Ignore the effects of air resistance, and assume the initial height of her center of mass is at y = 0.)

(a)    0.100 s
m

(b)    0.200 s
m

(c)    0.300 s
m

(d)    0.500 s
m

Answer 1