Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
Answers:
K.E. = 1/2mv2 and momentum P = mv
Eliminating v, K.E. = 1/2m x (P/m) = P2/2m
Given: P = 40 kg m/s, m = 0.1 kg.
K.E. = (40)2/2 x 0.1 = 8000 J = 8 x 103 J.
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
K.E. = 1/2mv2 and momentum P = mv
Eliminating v, K.E. = 1/2m x (P/m) = P2/2m
Given: P = 40 kg m/s, m = 0.1 kg.
K.E. = (40)2/2 x 0.1 = 8000 J = 8 x 103 J.