Question
With what minimum speed must you toss a 160 ball straight up to hit the 15 -high roof of the gymnasium if you release the ball 1.7 above the ground? Solve this problem using energy.
Answers
drwls
Is the mass of the ball in kg, grams or pounds or ounces? I assume your distances are in feet.
Actually, the mass doesn't matter in this case.
If you must raise the height of the ball a distance H, then its iniital kinetic energy must be M g H, the potential energy increase at the top of the trajectory. The M will cancel out
V^2 = 2 g H
Actually, the mass doesn't matter in this case.
If you must raise the height of the ball a distance H, then its iniital kinetic energy must be M g H, the potential energy increase at the top of the trajectory. The M will cancel out
V^2 = 2 g H