a roller coaster car rapidly picksup seed as it rolls down a slope. AS it starts down its speed is 4m/s. 3 seconds later its spe

Question

kicyunya [14]

3 years ago

9

a roller coaster car rapidly picksup seed as it rolls down a slope. AS it starts down its speed is 4m/s. 3 seconds later its spe

ed is 22 m/s. what is its average acceleration

Mathematics

1 answer:

il63 [147K] · Answer 1 · 2022-09-03T15:01:29+03:00

Change in speed = (end speed) - (start speed)

   =    (22 m/s)    - (4 m/s) = 18 m/s .

Magnitude of average acceleration =

   (change in speed) / (time for the change) .

   =    (18 m/s) / (3 sec) = 6 m/s² .

That's about 0.61 G.
If you weigh 150 pounds, then you would feel as if there's
a force of 92 pounds pushing you back against the seat !