If a cart started rolling down a hill at 2 m/s, and 5 seconds later it was moving at 12 m/s, what was the carts accelaration

2 m/s^2

Step-by-step explanation:

Acceleration is the rate at which the speed changes.

a = (new speed - old speed)(time)

a = (12 m/s - 2 m/s)/(5 s)

a = (10 m/s)/(5 s)

a = 2 m/s^2

its 4 because 2 times 2 is 4, if you double the number two you get four

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.