Net work=mu*m*g*distance
change KE=KEinitial-KEfinal=KEinitial-0
friction results in heat.
a 2 kg object moving at 5 m/s enters a surface with the coefficient of kinetic friction is .1 and is brought to a full stop. If the cart moved 12.8 m calculate:
a) the net work done on the object over the 12.8 m distance (I got 6.4j, but it's probably wrong)
b) change in kinetic energy of the object
c) in what form of energe was the kinetic energy changed?
1 answer