Q.
In a legend the hero kicked a baby pig so that he is projected with a speed greater than that of his cry. If the weight of the baby pig is assumed to be 5 kg and the time of contact 0.01 sec, the force with which the hero kicked him was:
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a
5x10-2 N
b
2 x 105 N
c
1.65 x 105 N
d
1.65 x 103 N
answer is C.
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Detailed Solution
Fav=ΔpΔt=mvΔt=(5)(330)0.01=1.65×105N(Note :- Speed of sound =330 m/s)
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