Formula for time: velocity/distance **Going to use GRESA
Given: v=65mi/hr d=115mi --- Required: time=? --- Equation: v/d --- Solution: 65mi/hr / 115mi = 0.57 hr --- Answer: 0.57 hr
Potential equals kenecric at the bottom so potential would also increas
Explanation:
It is given that,
Momentum of an object, p = 23.3 kg-m/s
Kinetic energy, E = 262 J
(a) Momentum is given by, p = mv
23.3 = mv...........(1)
Kinetic energy is given by, 
m = mass of the object
v = speed of the object
v = 22.48 m/s
(2) Momentum, p = mv


m = 1.03 Kg
Hence, this is the required solution.
This is a tricky question I think so because the light hits the shirt and the shirt is a but transparent or its just a plain white shirt sorry if I did not answer your question in new to this ( ´ ▽ ` )ノ