3 years ago

An 0.08 kg arrow is shot from a bow with a velocity of 25 m/s.

Physics

1 answer:

sukhopar [10]3 years ago

5 0

123846284741741741741741852851 to he power of 46

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Answer:

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displacement = 13.2m

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A 2000 kg roller coaster is at the top of a loop with a radius of 24 m. If its speed is 18 m/s at this point, what force does it

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Answer:

$46620\ \text{N}$

Explanation:

m = Mass of roller coaster = 2000 kg

r = Radius of loop = 24 m

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$N-mg=\dfrac{mv^2}{r}\\\Rightarrow N=\dfrac{mv^2}{r}+mg\\\Rightarrow N=\dfrac{2000\times 18^2}{24}+2000\times 9.81\\\Rightarrow N=46620\ \text{N}$

The force exerted on the track is $46620\ \text{N}$ .

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