In compressing the spring in a toy dart gun, 0.5 J of work is done.
When the gun is fired, the spring gives its potential energy to a dart with a mass of
0.02 kg.
(a) What is the dart’s kinetic energy as it leaves the gun?
(b) What is the dart speed?
2 answers
(a) The work W done compressing the spring becomes stored potential energy. When the spring is decompressed the same amount of energy be
becomes kinetic energy.
(b) Use the definition and value of kinetic energy to compute V
(b) Use the definition and value of kinetic energy to compute V
5 answers