In 1908, Charles Street of the Washington, D.C., baseball team caught a baseball thrown from the top of the Washington Monument. If the height of the ball before it was thrown was 165 m, and the mass of the baseball was 0.145 kg, what was the potential energy of the baseball before it was thrown? Assume that the acceleration due to gravity was 9.81 m/s2.
Given: m = 0.145 kg, z = 165 m; g = 9.81 m/s2
What will be an ideal response?
PE = mgz = (0.145 kg)(9.81 m/s2)(165 m ) = 235 J
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