Physics: A4 kg bar of metal weighs about 8.8 pounds. approximately how much does it weigh in newtons?

A4 kg bar of metal weighs about 8.8 pounds. approximately

Ответ:

201889992

04.01.2022

Well one pound is four and a half newtons. But we also have Earths gravity that we could use instead. 10 m/s^3 < Multiply that by 4 and you should end up getting roughly around 40 newtons.

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Ответ:

dhurtado1195

18.03.2022

Physics

4.3 m/s

Explanation:

The centripetal force is given by

$F=m\frac{v^2}{r}$

where

m is the mass of the object

v is the speed

r is the radius of the circular trajectory

In this problem, we know:

- the centripetal force: F = 533 N

- the radius of the circle: r = 0.75 m

- the mass of the object (Rachel): m = 16.4 kg

Therefore, we can re-arrange the formula above to find the speed of Rachel:

$v=\sqrt{\frac{Fr^2}{m}}=\sqrt{\frac{(533 N)(0.75 m)^2}{16.4 kg}}=4.3 m/s$

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A4 kg bar of metal weighs about 8.8 pounds. approximately how much does it weigh in newtons?

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