A roller coaster of mass 500 kg starts its ride from rest at point A. Point A is located at a height of 70 m above the lowest point on the track. The car rolls down the incline and follows the track around a loop of radius 15 m. Ignore friction force.

How much work is required to bring the cat to point A?

The work required to bring the cat to point A is 343 kJ.

Explanation:

Given that,

Mass of the roller coaster, m = 500 kg

Height from ground to point A, h = 70 m

The car rolls down the incline and follows the track around a loop of radius 15 m. We need to find the work required to bring the car to point A. the work done is equal to its potential energy such that :

W = mgh

or

W = 343 kJ

So, the work required to bring the cat to point A is 343 kJ. Hence, this is the required solution.

nah.   i'm just sleepy.