A projectile of mass 1 . 2kg undergoes a perfectly inelastic collision with a trolley of mass 3 . 6kg as shown in the figure. At the time of the collision, the speed of the projectile is 5m s ^ - 1 at an angle of 37 °

Question

Quantrex Academy · Accepted Answer

Correct answer: 12.6

A projectile of mass 1 . 2kg undergoes a perfectly inelastic collision with a trolley of mass 3 . 6kg as shown in the

Using the conservation of linear momentum in the horizontal direction we get,

$1 . 2 \times 4 = 4 . 8 \times v$

$⇒ v = 1m{s}^{- 1}$

The loss in kinetic energy is equal to the amount of heat energy released.

$\left|∆ K\right| = \dfrac{1}{2} \times 1 . 2 \times {\left(5\right)}^{2} - \dfrac{1}{2} \times 4 . 8 \times {\left(1\right)}^{2}$

\left|∆ K\right| = 12 . 6J

A projectile of mass 1 . 2kg undergoes a perfectly inelastic...

Correct answer

Step-by-step solution

More from Center of Mass, Momentum and Collision