Question

3
Find the potential energy possessed by an object
of mass 15kg when it is raised to a height of 10
M above the ground (given g = 9.8 ms-2​

Answer 1

Given :-

Mass of the object = 15 kg

Height of the object = 10 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) = 15 kg

Gravity (g) = 9.8 m/s

Height (h) = 10 m

Substituting their values,

⇒ PE = mgh

⇒ PE = 15 × 9.8 × 10

⇒ PE = 1470 J

Therefore, the potential energy of an object is 1470 J.

Answer 2

Answer:

$Given$

• A mass of 15 kg when it is raised to a height of 10 m above the ground. (g = 9.8 m/s)

$To Find$

• What is the potential energy possessed by an object.

$Formula\: Required$

✪ P.E = m × g × h ✪

Here,

⬤ P.E = Potential Energy

⬤ m = Mass

⬤ g = Gravity

⬤ h = Height

$Solution$

Given in the question :

• Mass = 15 kg
• Gravity = 9.8 m/s (Given)
• Height = 10 m

ATQ,

↦ P.E = 15 × 9.8 × 10

↦ P.E = 1470 J

Therefore, the potential energy is 1470 J.