Astraight road to the top of a hill is 2500 feet long and make of 12°with the horizontal. find the high of the hill

2500cos(12) = 2100m

this is a couple more characters

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.

read more on -

no

sodium is solid at rt