A 24 kg projectile is fired at an angle of 53° above the horizontal with an initial speed of 50 m/s. At the highest point in its trajectory, the projectile explodes into two fragments of equal mass, the first of which falls vertically with zero initial speed.
How much energy was released during the explosion?

Question

A 24 kg projectile is fired at an angle of 53° above the horizontal with an initial speed of 50 m/s. At the highest point in its trajectory, the projectile explodes into two fragments of equal mass, the first of which falls vertically with zero initial speed.

How much energy was released during the explosion?

TestHub · Accepted Answer

​ Range R = 10 5 0 2 × 2 sin 5 3 ∘ ⋅ cos 5 3 ∘ ​ = 250 × 2 × .6 ​ × .8 ​ R = 240 m ​ ∴ d = R + 2 R ​ = 2 3 R ​ = 360 m ​ From P f ​ = P i ​ in horizontal ​ 2 ma 30 = mv ​ ⇒ v = 60 m / s ​ Just after explosion

Physics - Center of Mass Question with Solution | TestHub

Options:

Doubts & Discussion