Question

How much potential energy does a 10 N baseball gain when it is lifted by 10 m?


A.

20 J    
B. 100 J    
C. 200 J    
D. 1000 J
Help Please and Thank You. :)

Answer 1

P.E=N*m=10N*10m=
100J

Answer 2

B. 100 J

Step-by-step explanation:

The change in potential energy of an object is given by:

`\Delta U= W \Delta h`

where

W is the weight of the object

`\Delta h` is the variation of height of the object

In this problem, the weight of the baseball is W=10 N, while the variation of height is
`\Delta h=10 m`. So, the increase in potential energy of the ball is

`\Delta U=(10 N)(10 m)=100 J`