Question

what is the path of exploded shell thrown with a initial velocity.Why
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Answer 1

Answer:

PHYSICS

A shell is fired from a cannon with a velocity v at an angle θ with the horizontal direction. At the highest point in its path, it explodes into two pieces of equal mass. One of the pieces retraces its path. Speed of the other piece immediately after the explosion is:

MEDIUM

ANSWER

From the given information, at the highest point the velocity in the horizontal direction would be vcosθ. Also, given that the piece retraces the path and velocity of the mass would be vcosθ (in exactly opp. direction) .

Let us apply the law of conservation of momentum ( Initial momentum =Final momentum )

∴mvcosθ=

2

m

×v

1

−

2

m

×vcosθ

3vcosθ=v

1

v

1

=3vcosθ

Speed of the other piece immediately after the explosion is 3vcosθ

Answered By yadavjii64