Find the momentum of a body of mass 100g having kinetic energy of 20J.
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if k.e 20 j and mass 0.1 kg than we calculate velocity by the formula of 1 / 2 mv2 so v is here 20 m/s
after that momentum formula MV se 0.1×20= 2 kgm/s
after that momentum formula MV se 0.1×20= 2 kgm/s
vinitadevpal:
how you calculate the velocity
by the formula of k.e 1/2mv^2=20 then mv^2 = 40 then mass 100g change in kg by divide 1000 so mass is 0.1 kg then 0.1× v^2 = 40 then v^2 = 400 so v is 20m/s
oh i did a mistake .i think m=1 b
that is why my answer is wrong
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