A 0.430 kg baseball comes off a bat and goes straight up in the air. At a height of 10.0 m, the baseball has a speed of 25.3 m/s. Determine the mechanical energy at this height. Show all your work
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Mechanical energy = kinetic energy + potential energy
ME = KE + PE
ME = ½ mv² + mgh
ME = ½ (0.430 kg) (25.3 m/s)² + (0.430 kg) (9.8 m/s²) (10.0 m)
ME = 180 J
Mechanical energy is conserved, so it is 180 J at all points of the trajectory.
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