- #1
jartsa
- 1,577
- 138
A cyclist coasts along a road, he drives across a small puddle of water, after which the wheels leave wet lines on the road.
Now we concentrate our attention to the linear momentum of the water on a wheel. It decreases. Momentum is conserved, so what got the momentum that the water had?
Now we concentrate our attention to the linear momentum of the water on a wheel. It decreases. Momentum is conserved, so what got the momentum that the water had?