Consider a block and trolley system as shown in figure. If the… | JEE Main 2024 (1 Feb, Shift 1)

Q6JEE Main 2024 · 1 FEB · SHIFT 1Medium

Friction Basics

Consider a block and trolley system as shown in figure. If the coefficient of kinetic friction between the trolley and the surface is 0.04, the acceleration of the system in $\text{ms}^{-2}$ is:

(Consider that the string is massless and unstretchable and the pulley is also massless and frictionless):

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Answer: (d)

Driving force: weight of $6\text{ kg}$ block $= 60\text{ N}$ .
Friction on trolley $f_k = 0.04 \times 20 \times 10 = 8\text{ N}$ .
$a = \dfrac{60 - 8}{20 + 6} = \dfrac{52}{26}$
So the answer is (d) $2\text{ m/s}^2$ .

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Friction Basics question from JEE Main 2024 (1 Feb, Shift 1)

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