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stich3 [128]
3 years ago
11

How much energy will be stored if the spring is stretched three times as far?

Physics
1 answer:
Mrac [35]3 years ago
8 0
Elastic energy (E1) stored in the spring when it is stretched by x : 
<span>=1/2kx^2=1.5J </span>

<span>when it is stretched 3 times more=>x becomes 3x 
</span>so
<span>E2=1/2k(3x)^2 </span>
<span>=1/2k{9x^2} </span>
<span>=9{1/2kx^2} </span>
<span>={(E1}</span>
<span>=9{1.5} </span>
<span>=13.5J
hope it helps</span>
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