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kherson [118]
3 years ago
12

A football is thrown vertically with an initial velocity of 33m/s. Calculate the velocity of the ball when it’s height increased

5m
Physics
1 answer:
tatyana61 [14]3 years ago
5 0

The final velocity becomes 31.48 m/s

<u>Explanation:</u>

Given:

Initial velocity, u = 33 m/s

Height, h = 5m

Final velocity, v = ?

According to Newton's law:

v² - u² = 2gh

where,

g is the acceleration due to gravity and

g = 9.8 m/s²

On substituting the values we get:

v^2 - (33)^2 = 2 X -9.8 X 5\\\\v^2 - 1089 = -98\\\\v^2 = 991\\\\v = 31.48 m/s

Therefore, the final velocity becomes 31.48 m/s

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Answer:

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B.) 0

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Explanation:

Given that a displacement function of a particle is x(t)=(20t^2-15t+200).

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Total displacement will be

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X(t) = 0.25 - 0.75 + 40

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V = 60 (0.25) - 15

V = 0.

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3 years ago
What can you say about the speed of light in diamond?
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A globe differs from a map. It is a three dimensional sphere representing the whole Earth.

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A cylindrical tungsten filament 14.0 cmcm long with a diameter of 1.00 mmmm is to be used in a machine for which the temperature
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