Question

3) An object of mass 'm' and velocity has a
K.E=200 J . Find the new kE of the mass of
the object becomes double and velocity
remains same?​

Answer 1

Answer:

IF MASS IS DOUBLED THEN K.E WILL ALSO BE DOUBLED (K.E IS DIRECTLY PROPOTIONAL TO MASS,SO IF MASS IS DOUBLED K.E WILL ALSO BE DOUBLED)

Explanation:

K.E=1/2mv*2

IF MASS IS DOUBLED THEN:-

NEW K.E=1/2(2m)v*2

=mv*2

SO,OLD K.E=NEW K.E/2

NEW K.E=2×OLD K.E

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