A roller coaster reaches the top of the steepest hill with a speed of 6.6 km/h. It then descends the
hill, which is at an average angle of 37° and is
38.0 m long
v
Part A
What will its speed be when it reaches the bottom? Assume uk = 0.18

s the environmental science is a broader field that incorporates many elements of earth and life sciences, whereas ecology is usually more focused on how organisms interact with each other and their surroundings, and often on a very specific population of living things. soo yea

explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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grav forces affect all objects magnetic forces affect magnetic objects and electric currents