A hockey stick applies a constant force over a distance of 0.127 m to an initially stationary puck, of mass 152 g. The puck moves with a speed of 51.0 m/s. With what force did the hockey stick strike the puck?

Answer 1

Hmmm.

v = at
51 = at

s = 1/2 at^2
2s = at^2
.254 = at^2 = at*t
.254 = 51*t
t = .00498

51 = .00498a
a = 10240.963

F = ma = .152 a = 1556.6