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Physics

1 answer:

Pepsi [2]2 years ago

8 0

Answer:

Explanation:

b) Gravity reduces the initial upward velocity to zero in a time of

t = v/g = 40/10 = 4 s

a) h = v₀t + ½gt² = 40(4) + ½(-10)4² = 80 m

v² = u² + 2as

h = (0² - 40²) / 2(-10) = 80 m

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<h3>What is focal length?</h3>

The focal length of the lens, which is often expressed in millimeters, is the distance between the lens and the image sensor when the subject is in focus.

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