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lubasha [3.4K]
3 years ago
15

Iwill need to use more force to stopa O Lighter mass O Heavier mass

Physics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer:

a heavier mass

Explanation:

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Planets move around the sun in elliptical orbits. True. False
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A 1.0 kilogram ball is thrown into the air with an initial velocity of 30m/s. How much kinetic energy does the ball have? (B) ho
Gala2k [10]

Answer:

450 joules ; 450 joules ; 45.9 m

Explanation:

Given that :

Initial Velocity, u = 30m/s

Mass, m = 1 kg

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K.E = 0.5 * 900

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P. E = mgh

At the highest point, all kinetic energy has would have become potential energy, hence

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C) Height of the ball :

From ; P. E = mgh

Where ; g = acceleration due to gravity = 9.8m/s² ; h = height

450 = 1 * 9.8 * h

450 = 9.8h

h = 450 / 9.8

h = 45.918

h = 45.9 m

7 0
3 years ago
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