Projectile Motion and Explosion Physics Help?

Posted on 2015-11-12 12:33:00 in Physics by MICHEL JOHN

A 3.12-kg projectile is fired with an initial speed of 116 m/s at an angle of 31° with the horizontal. At the top of its trajectory, the projectile explodes into two fragments of masses 0.98 kg and 2.14 kg. At 3.93 s after the explosion, the 2.14-kg fragment lands on the ground directly below the point of explosion.

a) Determine the velocity of the 0.98-kg fragment immediately after the explosion.
v1=

(b) Find the distance between the point of firing and the point at which the 0.98-kg fragment strikes the ground. __?_km

(c) Determine the energy released in the explosion. _?_kj

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