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11. A 2 kg block is lying on a smooth table which is connected by a body of mass 1 kg by a string which passes through a pulley. The 1 kg mass is hanging vertically. The acceleration of block and tension in the string will be

(a) 3.27 m/s ^ 2 , 6.54 N

(b) 4.38,m/s ^ 2 , 6.54 N

(c) 3.27 m/s ^ 2   , 9.86 N

(d) 4.38,m/s ^ 2 , 9.86 N

Ans. a

 

(25)

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(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (118)

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