imagine a flat, lightweight wheeled cart that's low to the ground and has well-oiled bearings. what would happen if you approached the cart, stepped onto it, and walked along its length at a constant speed? it would
a) remain nearly stationary
b) advance along with you
c) move rapidly in the opposite direction
d) move forward then backward
e) none of the above
1 answer
it would move in the opposite direction due to conservation of linear momentum, but I don't really know why it would be considered 'rapid'...