Question

What will be the potential energy of the body of mass 2 kg kept at a height of 10 m above the ground?(take g= 10 m/s^2) *
1 point
a) 100 J
b) 200 J
c) 300 J
d) 400 J

Answer 1

Answer:

200J

Explanation:

Potential energy = mgh =  mass x gravity due to acceleration x height

mass = 2kg

Given: g = 10m/s^2

h = 10m

P.E = mgh = 2 x 10 x 10 = 200J

Answer 2

Given :

Mass (m) = 2 Kg

Height (h) = 10 m

To Find :

Potential Energy

Solution :

If a body of mass m be raised to a height h from the ground, the potential energy can be given as -

Potential energy (PE) = mgh

Here, m = 2 Kg; g = 10 m/sec² and h = 10 m

So, Potential energy (PE) = 2 × 10 × 10

                                         = 200 J

Therefore, Potential Energy of the body is found to be 200 J.

Option (b) 200 J is correct.