ICSE Class 10 Physics 2020 Solved Paper

SECTION - II

The figure below shows a simple pendulum of mass $200 {\g}$ . It is displaced from the mean position A to the extreme position B. The potential energy at the position $A$ is zero. At the position $B$ the pendulum bob is raised by $5 {\m}$ .

Question : 27 of 67

Marks: +1, -0

What is the potential energy of the pendulum at the position

B

Solution:

At the position

{\B}

{\U}\;=m g h

\;=\;{200}/{1000} × 10 × 5

( ∵ m=200 {\g}=\;{200}/{1000} {\kg})

\;=10 {\J}

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