V A block of mass 2 kg placed on a ...
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V A block of mass 2 kg placed on a long frictionless horizontal table is pulled horizontally by a constant force F. It is found to move 10 m in the first two seconds. Find the magnitude of F

JEE/Engineering Exams
Physics
Solution
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talse " Krictionless since the tave - wo ofposing fillional force there ( u ), wotion during otes [ u=0, t=2 s ] accelaration of block ( a=frac{F}{m}=frac{F}{2} ) ther ( S=u t+1 / 2 a t^{2} ) ( 10=(0)^{2}+frac{1}{2}left(frac{5}{2}right)(2)^{2} ) [ F=10 N ]
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