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IgorLugansk [536]
3 years ago
7

An object initially at rest breaks into two pieces as the result of an explosion. One piece has twice the kinetic energy of the

other piece.
Part A
What is the ratio of the masses of the two pieces?

1. m1/m2= square root 2
2. m1/m2=2

Which piece has the larger mass?
The piece with the larger kinetic energy has the larger mass.
The piece with the smaller kinetic energy has the larger mass.
Physics
2 answers:
djyliett [7]3 years ago
8 0

Answer:

a) m1/m2 = 2 is correct

b) the answer above is incorrect, the piece with the smaller kinetic energy has the largest mass

Explanation:

a) m1/m2 = 2 is correct

b) the answer above is incorrect, the piece with the smaller kinetic energy has the largest mass

aev [14]3 years ago
6 0

Answer:

Part A 2 (m1/m2 = 2)

Part B ( Piece with larger kinetic energy has larger mass)

Explanation:

By the law of conservation of mass and energy both mass and energy remains constant in a system.

This means that the explosion will cause the object to break and get the energy from the explosion in form of kinetic energy. Assuming the speed to be constant greater mass means greater kinetic energy. If kinetic energy of 1 mass is twice the other one, this means mass of one is twice of the other one thus ration of their masses will be equal to two.

Thus the piece with larger mass will have greater kinetic energy. This is when we assume that speed of both pieces is constant after the explosion. Without assumption it cannot be inferred.

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