From the law of conservation of energy, the potential energy is conserved into kinetic energy and vice versa.
That is, U = K
The potential energy of spring:
, where k is the force constant and x is the displacement.
Force on the spring:
One type of BB gun uses a spring-driven plunger to blow the BB from its barrel.
A. Calculate the force constant of its plunger's spring if you must compress it to 0.150 m to drive the 0.0500-kg plunger to a top speed of 20.0 m/s.
B. What force must be exerted to compress the spring?
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What scientific concept do you need to know in order to solve this problem?
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