Question

2. A cement bag weighs 50 kg. To what height it be raised so that its potential energy may
be 9800 J? (g = 9.8 m/s2)
(Ans. 20 m
1.
11​

Answer 1

The height at which the object is taken is 20 meters.

Explanation:

Given that,

Mass of the cement bag, m = 50 kg

When it is raised to some height its potential energy will be, P = 9800 J

To find,

Height at which the object is taken.

Solution,

The energy possessed by an object due to its height is called its potential energy. It is given by :

P=mghP=mgh

9800=50\times 9.8\times h9800=50×9.8×h

h = 20 meters

So, the height at which the object is taken is 20 meters.

Learn more,

Potential energy

https://brainly.in/question/7168082