Two balls of masses m each are moving at right angle to each other with velocities 6 m / s and 8 m / s respectively. If collision between them is perfectly inelastic, the velocity of combined mass is

Question

Two balls of masses m each are moving at right angle to each other with velocities 6 m / s and 8 m / s respectively. If collision between them is perfectly inelastic, the velocity of combined mass is (A) 15 m / s (B) 10 m / s (C) 5 m / s (D) 2.5 m / s

Tardigrade Admin · Accepted Answer

Using momentum conservation <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/790b3527ea1866b856bf54e660a75473-.png" /> m √62+82=2 m v1 v1=5 m / s

Q. Two balls of masses $m$ each are moving at right angle to each other with velocities $6 m / s$ and $8 m / s$ respectively. If collision between them is perfectly inelastic, the velocity of combined mass is

15 m / s

10 m / s

5 m / s

2.5 m / s

Using momentum conservation

$m 6^{2} + 8^{2} = 2 m v^{1}$
$v^{1} = 5 m / s$

Q. Two balls of masses m each are moving at right angle to each other with velocities 6m/s and 8m/s respectively. If collision between them is perfectly inelastic, the velocity of combined mass is