Questions: (A) Determine the speed of each object when the two passes each other

Question

Questions: (A) Determine the speed of each object when the two passes each other. (B) Determine the speed of each object at the moment the 5.00-kg object hits the table. (C) How much higher does the 3.00-kg object travel after the 5.00-kg object hits the table?

PlEaSe: Do a step-by-step solution for the problem, and explain it. Thank you.

This picture shows the final situation of the problem. While the initial situation is the opposite of this picture.

PlEaSe: Do a step-by-step solution for the problem, and explain it. Thank you.

Explanation / Answer

two passes when h=2m taking whole as a system, m1*2-m2*2= .5*m1*v^2+.5*m2*v^2 or,v=1 m/s block m1 having velocity of 1m/s downward and m2 upward 1m/s again, m1*4-m2*4= .5*m1*v^2+.5*m2*v^2 or, v= 1.414 m/s at the time 5 kg block hit the ground, kinetic energy of m2= .5*3*1.414^2= 3J 3=3*9.81*h or, h=10 cm

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