g Problem 5. A 100 g firecracker is launched vertically into the air and explodes into two pieces at the peak of its trajectory. If a 72 g p

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g Problem 5. A 100 g firecracker is launched vertically into the air and explodes into two pieces at the peak of its trajectory. If a 72 g piece is projected horizontally to the left at 20 m/s, what is the speed and direction of the other piece

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Nem 4 years 2021-07-27T09:42:52+00:00 1 Answers 260 views 0

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  1. Cherry
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    2021-07-27T09:44:47+00:00
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    Answer:

    Explanation:

    At the peak , velocity of firecracker = 0

    It splits into mass of m₁ = 72 g and m₂ = 28 g

    Applying conservation of momentum laws

    m₁ v₁ = m₂v₂

    72 x 20 = 28 x v₂

    v₂ = 51.43 m / s .

    It will go opposite to  other piece to conserve momentum ie to the right direction.

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