Projectile Explodes In Air

Assertion: If a projectile explodes in mid air, then no external force acts on the projectile during explosions. Reason: Center of mass in this case follows the same path.

STATEMENT-1 : When a projectile explodes in mid air the centre of mass follows circular path after explosion. STATEMENT-2 : In an elastic collision velocities can't be interchanged it colliding bodies have different masses. STATEMENT-3 : During a perfectly elastic collision the kinetic energy of the system remains constant.

If a projectile explods in mid air then just before and just after explosion, choose correct option(s)

A projectile of mass 20 kg is fired with a velocity of 400m//s at an angle of 45^(@) with the horizontal .At the highest point of the trajectocy the projectile explodes into two fragments of equal mass,one of which falls vertically downward with zero initial speed, The distance of the point where the other fragment falls from the point offiring is:

A projectile of mass M is fired so that the horizontal range is 4 km. At the highest point the projectile explodes in two parts of masses M/4 and 3M/4 respectively and the heavier part starts falling down vertically with zero initial speed. The horizontal range (distance from point of firing) of the lighter part is:

A bombthrown as projectile with angular projection explodes in mid-air. What is the path traced bythe centre of mass of the fragments assuming the friction to be begligible ?

Two projectiles collide in air, then for just after and before the collision

Assertion: A projectile gets exploded at its highest point. All the piece get only horizontal velocities. Reason: The weight of the projectile is the external force for projectile.

A bomb dropped from an aeroplane explodes in air. Its total :