Question

5
Cambridge Assessment
International Education
ambridge International School
Solitaire
Global Schools
let's aspire for excellence
Lesson/Topic name
Grade: 9
Numerical based on gpe and power
Subject:Physics
HW
MWISH
IMMIMMI
HIHIHIMA
NIMIRUNTHIHIHURT MINI MUHIMMHIHI
1. A man of mass 60 kg climbs up a 20 m long staircase to the top
of a building 10 m high. What is the work done by him ?
(Take g = 10 ms-2).
(A) 12 kJ
(B) 6 kJ
(C) 3 kJ
(D) 18 kJ
bib​

Answer 1

Answer:

what we have to do

Explanation:

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Answer 2

Answer:

Explanation:

Here, m=60kg, height h=10m

Work done W= change in potential energy =mgh−0=mgh=60×10×10=6000J=6kJ