Question

A man of mass 48 kg carrying a bag of 2kg climbs a stair of 20 steps.What is the potential energy of man and bag if each step has a rise of 20cm?

Answer 1

Answer:

4*10*50

2000

Explanation:

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Answer 2

$\huge\underline\mathcal\green{Question}$

A man of mass 48 kg carrying a bag of 2kg climbs a stair of 20 steps.What is the potential energy of man and bag if each step has a rise of 20cm?

$\huge\underline\mathcal\orange{Answer}$

$w = m \times g \times h \\ w = 100 \times 9.8 \times 10 \\ w = 9800 \: j \\ \\ m = m1 + m2 \\ m = 80 + 20 = 100 \: kg \\ \\ h = h1 \times h2 \\ = 40 \times 25 = 1000 \: cm \\ = 10 \: m$

$\huge\underline\mathcal\purple{BTS \: EXO}$