A man of mass 60 kg steps onto a podium of height 30 cm. What is the gravitational potential energy gained by the man? [g = 10 N/kg]
Question
A man of mass 60 kg steps onto a podium of height 30 cm. What is the gravitational potential energy gained by the man? [g = 10 N/kg]
Solution
To calculate the gravitational potential energy gained by the man, we can use the formula:
Potential Energy (PE) = mass (m) * gravity (g) * height (h)
Given in the problem, we have:
mass (m) = 60 kg gravity (g) = 10 N/kg height (h) = 30 cm = 0.3 m (since 1m = 100cm)
Substituting these values into the formula, we get:
PE = 60 kg * 10 N/kg * 0.3 m = 180 Joules
So, the gravitational potential energy gained by the man is 180 Joules.
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