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11Alexandr11 [23.1K]
3 years ago
15

Miriam accidentally drops her cell phone during a call. It falls for 0.5 s before hitting the ground. What is the speed of the p

hone at 0.5 s? Assume only gravity is acting on it. A. 5 m's B. 10 m/s C. 20 m/s D. 0.5 m/s​
Physics
1 answer:
Flauer [41]3 years ago
6 0

Answer:

5 m/s

Explanation:

v = at

v = 9.8(0.5) = 4.9 m/s

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What is the kinetic energy in Joules of a 1,500kg car traveling at 75mph?What is the kinetic energy in Joules of a 1,500kg car t
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Answer: 2812500 joules

Explanation:

Mass of car = 1500kg

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Thus, Kinetic energy = 1/2 x mv^2

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