1pt. A roller coaster car is released from a standing start at the top of a 20.0-m hill. The car rolls down the hill to a point

Question

4 years ago

9

1pt. A roller coaster car is released from a standing start at the top of a 20.0-m hill. The car rolls down the hill to a point

10.0 m
above the ground, then up a second hill to 15.0 m, and then down again to point X at 8.00 m above the ground. Use what
you know about the sum of the kinetic and potential energies to find the car's speed at X.
A. 11.7 m/s
B. 12.5 m/s
• C. 15.3 m/s
D. 19.8 m/s

SAT

1 answer:

bonufazy [111] · Answer 1 · 2022-02-16T04:42:43+03:00

bonufazy [111]4 years ago

4 0

Answer:

b-12.5

Explanation:

(-) 20 with 10 then (-) 8

i guess ❤❤❤

thank you ❤❤❤❤❤❤