Question

Q8. A man of mass 50 kg jumps to a 1 point
height of 1 m. His potential energy
at the highest point is(g = 10 m/s2);
(a) 50j
(b) 500j
(c) 5j
(d) 5000j​

Answer 1

Answer:

Explanation:

Given,

Mass of man, m = 50 kg

Height = 1 m

Acceleration due to gravity, g = 10 m/s²

To Find,

Potential energy, P.E = ?

Formula to be used,

Potential Energy = mgh

Solution,

Putting all the values, we get

Potential Energy = mgh

⇒ Potential Energy = 50 × 10 × 1

⇒ Potential Energy = 500 J

Hence, the potential energy  at the highest point is 500 J.

Answer 2

Answer:

Given :-

• A man of mass 50 kg jumps to a point of height is 1 m.

To Find :-

• What is the potential energy at the highest point.

Formula Used :-

✪ P.E = mgh ✪

where,

• P.E = Potential Energy
• m = Mass
• g = Acceleration due to gravity
• h = Height

Solution :-

Given :

• Mass (m) = 50 kg
• Acceleration due to gravity (g) = 10 m/s²
• Height (h) = 1 m

According to the question by using the formula we get,

⇒ P.E = mgh

⇒ P.E = 50 × 10 × 1

⇒ P.E = 500 × 1

➠ P.E = 500 J

∴ The potential energy at the highest point is 500 J . Hence, the correct options is option no (b) 500 J.