A stroboscopic photo of a club hitting a golf ball was made by Harold Edgerton in 1933. The ball was initially at rest, and the club was shown to be in contact with the ball for about 0.0022 s. Also, the ball was found to end up with a speed of 1.7 102 ft/s. Assuming that the golf ball had a mass of 55 g, find the average force exerted by the club on the ball.
I have tried this:
F = [m(vf - vi)] / [t]
Convert speed to m/s = ( 170 ft/s ) ( 0.3048 m/ft ) = 51.816 m/s
Plug it in:
F = [(0.055) ( 51.816 - 0)] / [0.0022] = 1295.4 N
But WebAssign is telling me that it's incorrect....... "Your response is off by a multiple of ten." OR "Your response differs from the correct answer by orders of magnitude."
HELP?
I have tried this:
F = [m(vf - vi)] / [t]
Convert speed to m/s = ( 170 ft/s ) ( 0.3048 m/ft ) = 51.816 m/s
Plug it in:
F = [(0.055) ( 51.816 - 0)] / [0.0022] = 1295.4 N
But WebAssign is telling me that it's incorrect....... "Your response is off by a multiple of ten." OR "Your response differs from the correct answer by orders of magnitude."
HELP?