A body of mass 2 kg, initially moving with a velocity of 10 m/s, collides with another body of mass - Science - Force and Laws of Motion

Question

A body of mass 2 kg, initially moving with a velocity of 10 m/s,
collides with another body of mass 5 kg at rest After collision
velocity of first body becomes 1 m/s Find the velocity of second
body

Sahil Sharma · Accepted Answer

m1 = 2kg, u1 = 10m/s, v1 =
1m/s
m2 = 5kg, u2 = 0m/s, v2 = ?
we know that-
m1u1 + m2u2 =
m1v1 + m2v2
(2*10) + (5*0) = (2*1) + (5v2)
20 + 0 = 2 + 5v2
18 = 5v2
18 / 5 = v2
3 6 = v2
therefore, the velocity of the second body is 3 6 m/s

A body of mass 2 kg, initially moving with a velocity of 10 m/s, collides with another body of mass 5 kg at rest. After collision velocity of first body becomes 1 m/s. Find the velocity of second body.