Question

The potential energy of an object with mass 2Kg at height 15 m is :
1) 294 J
2)270 J
3)225 J
4) 147 J​

Answer 1

Answer:

POTENTIAL ENERGY = mgh

=> 2 × 9.8 × 15

=> 294

THEREFORE, THE ANSWER IS a. 294j .

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Answer 2

Given :-

Mass of the object = 2 kg

Height of the object = 15 m

To Find :-

The potential energy of an object.

Analysis :-

Here we are given with the mass and height of the object.

In order to find the potential energy of the object substitute the values in the question such that potential energy mass into gravity into height and find the potential energy accordingly.

Solution :-

We know that,

• m = Mass
• h = Height
• PE = Potential energy
• g = Gravity

Using the formula,

$\underline{\boxed{\sf Potential \ energy=Mass \times Gravity \times Height }}$

Given that,

Mass (m) = 2 kg

Gravity (g) = 9.8 m/s

Height (h) = 15 m

Substituting their values,

⇒ PE = mgh

⇒ PE = 2 × 9.8 × 15

⇒ PE = 294 J

Therefore, the potential energy of an object is 294 J.