Question

A body of mass 2kg moving with uniform velocity of 40mts collides with another body at rest. If two body's move together with a velocity of 20mts. Find the mass of the other body.

Answer 1

Answer:

Explanation:

M1= 2 KG                                   M2= ?

V1= 40 M/S                                 V2= 0 M/S

FINAL VELOCITY= 20 M/S

FORMULA,

FINAL VELOCITY= (M1V1+M2V2)/(M1+M2)

                    20   =   (2*40+M2*0)/2+M2

                    20   =80/2+M2

                    2+M2=4

                    M2= 2 KG

HOPE THIS HELPS.