Abicyclist in the tour de france crests a mountain pass as he moves at 18 km/h. at the bottom, 4.0 km farther, his speed is at 75 km/h. what is the average acceleration (in m/s^2) while riding down the mountain?

We are given:

v0 = initial velocity = 18 km/h

d = distance = 4 km

v = final velocity = 75 km/h

a =?

We can solve this problem by using the formula:

v^2 = v0^2 + 2 a d

75^2 = 18^2 + 2 (a) * 4

5625 = 324 + 8a

a = 662.625 km/h^2

the independent variable, or the one that is intentionally manipulated is the speed.

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d