2 years ago

At what point in its swing is potential energy a maximum? E B D A C

Physics

1 answer:

cestrela7 [59]2 years ago

3 0

I think the answer is A.

Hope this helps :)

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Answer:

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Explanation:

M = mass of ship = $5.75\times 10^7\ kg$

m = mass of shell = 1100 kg

v = velocity of shell = 550 m/s

u = recoil velocity of ship

As linear momentum is conserved

$(M - m)u=-mv\\\Rightarrow u=-\frac{mv}{M - m}\\\Rightarrow u=-\frac{1100\times 550}{5.75\times 10^7+1100}\\\Rightarrow u=-0.01052\ m/s$

The recoil velocity of the ship taking the firing direction to be the positive direction is -0.01052 m/s

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neonofarm [45]

Answer:

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Explanation:

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