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Question

Two unequal masses of 1kg and 2kg are connected by an inextensible light string passing over a smooth pulley as shown in the figure. A force F=20N is applied on 1kg block. Find the acceleration of either block. (g=10m/s2)

239972_835e0c785b56416089499d3fffbac5e9.png

A
103
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B
203
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C
10
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D
20
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Solution

The correct option is A 103
Using FBD,
1.a=20+1.gT and
2.a=T2.g
Thus, solving these we get,
3a=20g
Put g=10 to get a=103m/s2
315943_239972_ans_f2500b74ad0843fb9ed8a98e175c6765.png

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