John is taking a shower and steps on the bar of soap. If John, a 510 N man, slides forward and the frictional force between the soap and the floor is 50 N, what is the coefficient of sliding (kinetic) friction between these two surfaces?

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

ingenuity says that the answer is 2.7 m.