Cart A and B are connected by a compressed spring. Cart A has a mass of 0.8 kg and Cart B has a mass of 3.00 kg. When the spring is released, Cart B moves to the right at a speed of 4 m/s. Find the speed of Cart A.
A W
B

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000