Two blocks are connected over a massless pulley as shown in fig. The mass of block $A$ is $10 \mathrm{ kg}$ and the coefficient of kinetic
friction is 0.2. Block A slides down the incline at constant speed. The mass of block $\mathrm{B}$ in $\mathrm{kg}$ is:

Question

Two blocks are connected over a massless pulley as shown in fig. The mass of block

A

is

10 \mathrm{ kg}

and the coefficient of kinetic Two blocks are connected over a massless pulley as shown in fig. The mass of block A is 10 kg and the coefficient of

friction is 0.2. Block A slides down the incline at constant speed. The mass of block

\mathrm{B}

in

\mathrm{kg}

is:

Quantrex Academy · Accepted Answer

Correct answer: B. 3.3

Considering the equilibrium of A, we get array l 10 a=10 ~g 30^ ^ -T-μ N where N=10 ~g 30^ ^ array 10 a=(10)/(2) ~g-T- μ × 10 ~g 30^ ^ but a=0 , ~T=m_ B g0=5 ~g - m_ B g - 0.2 3 2 × 10 × g m_ B =3.268 3.3 ~kg

Two blocks are connected over a massless pulley as shown in fig....

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