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Irina18 [472]
3 years ago
13

A rock is dropped from a tall building. After falling for three seconds what is its final velocity?

Physics
2 answers:
evablogger [386]3 years ago
6 0
I THINK v = 9.8 is the final velocity on impact. Hope I helped
netineya [11]3 years ago
3 0
Answer: 29.4m/s
a=9.8m/s ²
V=a*t
=9.8*3
=29.4
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Answer: Visible light makes up just a small part of the full electromagnetic spectrum. Electromagnetic waves with shorter wavelengths and higher frequencies include ultraviolet light, X-rays, and gamma rays.

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3 years ago
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Two identical 9.10-g metal spheres (small enough to be treated as particles) are hung from separate 300-mm strings attached to t
Musya8 [376]

Answer:

n = 1.266\times 10^{12}

Explanation:

Given data:

mass of sphere is 10 g

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thickness of string  300 mm = 0.3 m

sin\theta =\frac{2}{0.3 m}

r =0.3 sin 13 = 0.067 m

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q = ne

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3 0
2 years ago
A 2.8-kg cart is rolling along a frictionless, horizontal track towards a 1.2-kg cart that is held initially at rest. The carts
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Answer with Explanation:

We are given that

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v_1=\frac{9.64}{2.8}

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3 years ago
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Answer:

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For the perpendicular cases:

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