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Three blocks with masses m, 2m and 3m are connected by strings, as shown in the figure. After an
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Three blocks with masses m, 2m and 3m are connected by strings, as shown in the figure. After an upward force F is applied on block m , the masses move upward at constant speed v . What is the net force on the block of mass 2m ?
NEET 2013
Zero
2 mg
3 mg
6 mg
NEET 2013
Zero
2 mg
3 mg
6 mg
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