1. A golf ball rolls up a hill towards a miniature-golf hole. Assume that the direction toward the hole is positive.
a. If the golf ball starts with a speed of 2.0 m/s and slows at a constant rate of 0.50
m/s, what is the velocity after 2.0 s?
b.
What is the golf ball's velocity if the constant acceleration continues for 6.0 s?

the higher the current the higher the mag field around it the higher the influence on the compass

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.