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irina1246 [14]
3 years ago
9

In a bizarre but harmless Superman fell from the top of the Eiffel How fast was Superman traveling when he hit the ground 7.80 s

econds after falling ?

Physics
1 answer:
brilliants [131]3 years ago
5 0
Vf = final velocity
Vi = initial velocity
g = acceleration due to gravity
t = time

Vf = Vi + gt

Vf = 0 + (9.8)(7.80)
Vf = 76.44 m/s
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2 years ago
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Dennis_Churaev [7]

Answer:

(a) convex mirror

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Use the formula of magnification.

m =-\frac{v}{u}\\1.4=-\frac{v}{-20}\\v =28 cm

Use the mirror equation, let the focal length is f.

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Explanation:

l hope it helps you

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3 years ago
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