A roller coaster containing four cars is accelerating at -15 m/s2 before it comes to an abrupt stop at the end of the ride. The mass of one car is 200 kg. How much force was exerted on the roller coaster to bring it to a stop

F = -3000 N

Explanation:

Given that,

Mass of the car, m = 200 kg

A roller coaster containing four cars is accelerating at -15 m/s²

We need to find the force exerted on the roller coaster to bring it to a stop. Let F is the force.

F = ma

Putting all the values,

F = 200 kg × (-15 m/s²)

= -3000 N

So, the force us 3000 N and it act in opposite direction.