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The animation shows a putted golf ball of mass 0.050 kg as it rolls toward the hole. The putter hit the ball before t = 0 s and is no longer in contact with the ball (position is given in meters and time is given in seconds). Restart.

1. What is the net force on the golf ball during the interval from t = 0 to t = 4.2 s?
2. What is the force of the putter on the golf ball during this interval?

Problem authored by Aaron Titus with support by the National Science Foundation under Grant No. DUE-9952323 and placed in the public domain.