Question

two object of mass 10 kg and 20 kg are moving in opposite direction and collide with each other initial velocity 10 M per second 20 m per second after collision the object moves with a velocity V is equal to 10 M per second find the value of 2nd object

Answer 1

Mass of first object=10kg
Mass of second object=20kg

Initial velocity of first object=10m/s
Initial velocity of second object=20m/s

Final velocity of first object=10m/s
Final velocity of second object=?


M1*U1 + M2*U2 = M1*V1 + M2*V2

10*10 + 20*20 = 10*10 + 20*v

100 + 400= 100 +20v

500 = 100 + 20v

20v = 400

V = 400/20

V= 20m/s

Hence the velocity of the second object is 20m/s