A baseball has been thrown 0.15 kilometers into the air under normal earth gravity (9.8 m/s2) If the baseball has 55 joules of potential energy, what is the mass of the
baseball?

M = 0.037kg

Explanation:

Given the following data

Height, h = 0.15 km to meters = 0.15*1000 = 150m

P.E = 55J

Acceleration due to gravity, g = 9.8m/s²

To find the mass

P.E = mgh

Substituting into the equation, we have

55 = m*9.8*150

55 = 1470*m

Mass, m = 55/1470

Mass, m = 0.037kg

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2