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ICSE Class 10 Physics Question 19 of 25

Solved 2025 Specimen Paper ICSE Class 10 Physics — Question 10

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Question 7(i)

A block and tackle system of pulleys has velocity ratio 4.

(a) Draw a labelled diagram of the system indicating clearly, the direction of the load and effort.

(b) Calculate the potential energy of the load 100 kgf lifted by this pulley to a height 5 m. (g = 10 ms-2)

Answer

(a)The labelled diagram of the system indicating clearly, the direction of the load and effort is shown below :

The labelled diagram of the system indicating clearly, the direction of the load and effort is shown below. ICSE 2025 Specimen Physics Solved Question Paper.

(b) Given,

m = 100 kg

h = 5 m

g = 10 ms-2

Then,

Potential Energy (U) = mgh = 100 × 10 × 5 = 5000 J