A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 in and sticks to it- Now the combined mass starts to move. What will be the combined velocity?

Question

A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 in and sticks to it- Now the combined mass starts to move. What will be the combined velocity? (A) 4 km/h (B) 1 km/h (C) 2 km/h (D) 3 km/h

Tardigrade Admin · Accepted Answer

Applying law of conservation of momentum m× 3=(m+2m)v1 So, upsilon 1=1 km/hour

Q. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 in and sticks to it- Now the combined mass starts to move. What will be the combined velocity?

4 km/h

1 km/h

2 km/h

3 km/h

Applying law of conservation of momentum $m \times 3 = (m + 2 m) v_{1}$ So, $υ_{1} = 1 km / h o u r$

Q. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2 in and sticks to it- Now the combined mass starts to move. What will be the combined velocity?

4 km/h

1 km/h

2 km/h

3 km/h

Applying law of conservation of momentum m×3=(m+2m)v1​ So, υ1​=1km/hour

Applying law of conservation of momentum $m \times 3 = (m + 2 m) v_{1}$ So, $υ_{1} = 1 km / h o u r$