If a 1.3 kg ball is dropped from the top of a 33.7 meter building what is its potential energy before it is dropped? B) What is the maximum velocity of the ball in problem 1 just before it hits the ground?
C) How much kinetic energy does the ball in problem 1 have after it has fallen 10 m down the building?

429.338 J; 25.7 m/s; 127.4 J

Explanation:

Given

mass of ball m=1.3 kg

Height of building H=33.7 m

(a)Potential Energy before dropping

(b)Velocity Just before hitting the ground

(c)After falling 10 m

Here initial velocity is zero

using

Here,

Putting values

So, kinetic energy  

the diagram which shows forces as either balanced = same speed or unbalanced = accelerarting

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation: