a body falling with a speed of 2m/s strikes the floor and rebounds with a speed of 1m/s .the loss of energy is
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Loss in K.E.= {(m1m2)/2(m1+m2)} (1-e^2) (u1-u2)
another formula is
Loss in K.E.= {(m1m2)×(u1-u2)^2}/2(m1+m2)
so if the mass is not given and answer is in percentage then im sure the mass will be cut and only the velocity will remian.
another formula is
Loss in K.E.= {(m1m2)×(u1-u2)^2}/2(m1+m2)
so if the mass is not given and answer is in percentage then im sure the mass will be cut and only the velocity will remian.
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