Aroller coaster starts at rest from a height of 110m, and accelerates down the track to a height of 10m. find the speed it can reach, assuming no friction.

The final velocity of the roller coaster is 44.3 m/s

Explanation:

To calculate the final velocity of the roller coaster, we use third equation of motion:

where,

s = distance traveled = 110 - 10 = 100 m

u = initial velocity of the roller coaster = 0 m/s

v = final velocity of the roller coaster = ? m/s

a = acceleration due to gravity =

Putting values in above equation, we get:

Hence, the final velocity of the roller coaster is 44.3 m/s

the answer is 12 as i may remember

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0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr