Maximum possible initial speed Watch

Hellospaceboyy
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#1
Report Thread starter 5 years ago
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A rubber band is extended by 10cm which requires 12N to launch at 27g aeroplane. Calculate the maximum possible initial speed of the aeroplane

How would you calculate this?
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Stonebridge
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Report 5 years ago
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One way is to use energy considerations.
The maximum kinetic energy (and hence the speed) of the plane is the case where all the elastic PE in the rubber band is transferred to the plane.
Do you know a formula for the energy in a rubber band when stretched by a known force to a known extension?
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