Find the v first by using 3.14x0.22x2.16 div. 41g
If the light has all visible colors in it, and the object
reflects them all, then the object appears white.
4/3 pi (radius)^3
If the radius is in cm the volume will be in mL
First solve the potential energy of the biker. using the fomula:
PE = mgh
where m is the mass of the object
g is the acceleration due to gravity ( 9.81 m/s2)
h is the height
PE = 96 kg ( 1120 m ) ( 9.81 m/s2)
PE = 1054771.2 J
then power = Work / time
P = 1054771.2 J / ( 120 min ) ( 60 s / 1 min)
P = 146.5 W