Question

A mass of 3 Kg which is at rest suddenly explodes into 2 Kg and 1 Kg moves in opposite directions with velocity v 1 and v 2 respectively, the ratio of magnitude of the velocities v 1 and v 2 is

Answer 1

Explanation:

m1 = 1kg

M2 = 2kg

u = 0m/s

according toconservation of momentum,

m1u1+M2u2= m1u1+m2u2

(M1+M2)(0)= (1)(v1)+(2)(V2). here the object is initially at rest do, mass is same as given in question.

0 = v1+(-2v2) here the objects are moving in opposite directions.So,

2.v2= v1

2/1 = v1/V2

= 2:1

Answer 2

Answer:

V1:V2=2:1

V2:V1=1:2

OKKKKKKKK