3 years ago

Please help on this one

Physics

1 answer:

mixas84 [53]3 years ago

6 0

Ep=mgh
h= Ep/mg
h=57÷(3.3×9.8)
h= 57÷32.34
h= 1.8m
So; the answer is B. 1.8m

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b) 5.02272 J

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k = Spring constant

x = Stretched length

F = Force

$F=kx\\\Rightarrow k=\frac{F}{x}\\\Rightarrow k=\frac{4\times 9.81}{0.025}\\\Rightarrow k=1569.6\ N/m$

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