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3 years ago

5. A projectile is fired in Earth's gravitational field with a horizontal velocity of y = 9.00 m/s.

Physics

1 answer:

aniked [119]3 years ago

3 0

Answer:

Explanation:

Given

Horizontal velocity = 9.00m/s

time taken = 0.550 s

Required

How far does the projectile fall in the vertical direction

Using the formula for finding the maximum height of the projectile

H = U²sin²θ/2g where;

U = 9.00m/s

θ = 90° (object launched in the vertical direction)

g = 9.81m/s²

Substituting the given parameters into the formula;

H = 9²sin²90/2(9.81)

H = 81(1)/19.62

H = 81/19.62

H = 4.128 m

H ≈ 4.13m

Hence the distance that the projectile fall in the vertical direction is 4.13m

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Answer:

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Explanation:

Given that,

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2 years ago

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rewona [7]

The kinetic energy of the small ball before the collision is

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Now is a good time to review the Law of Conservation of Energy:

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The small ball has 2.25 joules of kinetic energy before the collision.
If the small ball doesn't have a jet engine on it or a hamster inside,
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