Question

14. The acceleration of man of mass 40 kg plus block
of mass 10 kg system shown in figure, if the man
applies a force 30 N on the string (the plane in
fixed, smooth and horizontal, also assume that the
string is horizontal)
(A) 0.6 m/s2
(C) 1.2 m/s2
(B) Zero
(D) 2.4 m/s2​

Answer 1

The acceleration is 0.6 m/s²

(A) is correct option

Explanation:

Given that,

Mass of man m₁= 40 kg

Mass of block m₂= 10 kg

Force = 30 N

We need to calculate the acceleration

Using formula of force

$F=Ma$

$a=\dfrac{F}{M}$

Where, M = mass of system

F = force

Put the value into the formula

$a=\dfrac{30}{50}$

$a=0.6\ m/s^2$

Hence, The acceleration is 0.6 m/s²

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Topic : acceleration

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