A roller coaster with a mass of 300 kg is at the top of a 75.0 m hill. It rolls down the hill on very low friction wheels and climbs up to the top of a 45.0 m hill. You must show all work to receive credit! Find: (a) the speed of the thing at the bottom of the first hill

(b) its speed at the top of the second hill.

Thank you for your time and hard work!

2160ft3

step-by-step explanation:

i think it would be c

mark brainliest if im right

step-by-step explanation:

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368

the answer to your question (9+10) is 19