A spring of force constant 1500N/m is acted upon by a constant force of 75N. Calculate the potential energy stored in the string.
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A spring of force constant 1500N/m is acted upon by a constant force of 75N. Calculate the potential energy stored in the string.
A stone of mass 5g is projected with a rubber catapult. If the catapult is stretched through a distance of 7cm by an average force of 70N, calculate the instantaneous velocity of the stone when released.
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