First slide

Constraints

Question

If string is pulled with acceleration of 2 m/s² then acceleration of block is :

Moderate

A

4 m/s²
B

2 m/s²
C

1 m/s²
D

8 m/s²

Solution

For moving pulley
$a = \frac{a_{1} + a_{2}}{2}$
Now according to question
acceleration of block = $\frac{2 + 0}{2} = 1 m / s^{2}$

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