A 1.0-kg ball with a speed of 3.0 m/s strikes a 2.0-kg stationary ball. The collision...
A 1.0-kg ball with a speed of 3.0 m/s strikes a 2.0-kg stationary ball. The collision is completely inelastic. (a) Calculate the speed of the balls after collision. (b) Calculate the total kinetic energy change during the collision
Homework Answers
the speed of the balls after collision v = m1*u1/(m1+m2) =
1*3/(2+1) = 1 m/sec...
change in K.E = Kf-Ki = (1/2)(m1+m2)*v^2 - (1/2)*m1*u1^2 =
(1/2)(1+2)*1^2-(1/2)*1*3^2 = 1.5-4.5 = -3 J.....
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