If a high jumper needs to make his center of gravity rise 1.02 m, how fast must he be able to sprint? Assume all of his
Posted: Sat Jul 02, 2022 7:04 pm
If a high jumper needs to make his center of gravity rise 1.02m, how fast must he be able to sprint? Assume all of his kineticenergy can be transformed into potential energy. For an extendedobject, the gravitational potential energy is U = mgh, where h isthe height of the center of gravity.
A cue stick hits a cue ball with an average force of 22.0 N fora duration of 0.0330 s. If the mass of the ball is 0.175 kg, howfast is it moving after being struck?
A cue stick hits a cue ball with an average force of 22.0 N fora duration of 0.0330 s. If the mass of the ball is 0.175 kg, howfast is it moving after being struck?