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A mass of 10 kg is there; How much force is required to push the block 100 m in a straight direction in a time interval of 10 secs? $\left ( g=10ms^{-2} \right )$
Option: 1
50N

Option: 2
100N

Option: 3
20N

Option: 4
200N

Answers (1)

best_answer

From the equation of motion, we can use

$S=ut+\frac{1}{2}at^{2}$

$\Rightarrow 100=0+\frac{1}{2}a*100$

$\Rightarrow a=2ms^{-2}$

Now the force required is $F=ma=10*2=20N$

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