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Determining initial acceleration of a projectile

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The problem:
A projectile enters a resisting medium at x = 0 with an initial velocity Vo = 900 ft/s and travels 4in. before coming to rest. Assuming that the velocity of the projectile was defined by the relation V = Vo - kx, where V is expressed in ft/s and x in feet, determine the initial acceleration of the projectile.

Solution Summary

This solution is provided in less than 100 words and provides calculations for finding the initial acceleration of the projectile through the use of a total energy equation.

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First, you need to solve the value of K. To do this, you need to set the energy equation that says:
E_initial=E_final
(1/2)mVo^2= (1/2)Kx^2 ...

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