NEC Projectile Motion Activity
You will be given a dart gun and up to three meter sticks Devise a step by step method for
finding the initial velocity of the art using only this equipment List the measurements you will
need to take, any assumptions you make and any formulas or calculations you will use to find
Vi then i need measurements needed

assumptions made

formulas or calculations used

step by step procedure

answer: the potential energy decreases from 379 j to 243 j

explanation:

for the law of conservation of energy, the total energy in a system must be conserved. the total energy of the system is given by the sum of kinetic (k) and potential (u) energy:

e = k + u

the total energy is e=675 j, and this does not change.

initially, the kinetic energy is k=296 j, so the potential energy is

at the end, the kinetic energy is k=432 j, so the potential energy is

so, we see that the potential energy has decreased from 379 j to 243 j.