Question

In the amusement park ride known as Magic Mountain Superman,powerful magnets accelerate a car and its riders from rest to 45m/s(about 100mi/h) in a time of 7.0s. The mass of the car and ridersis 5.5*103kg. Find the average net force exerted on thecar and riders by the magnets.

Answer 1

The average net force exerted by magnets on a car and its riders in an amusement park ride is calculated using Newton's second law (F=ma) and is found to be 35,365 newtons.

Step-by-step explanation:

The question deals with the application of Newton's second law of motion to determine the average net force exerted by magnets on a car and its riders in an amusement park ride. To find the force, we can use the formula F = ma, where F is the force, m is the mass, and a is the acceleration. The mass of the car and riders is given as 5.5 × 103 kg, and the acceleration can be found using the change in velocity (Δv = 45 m/s) over the time (Δt = 7.0 s), which is a = Δv/Δt.

First, calculate the acceleration:

a = Δv/Δt = 45 m/s / 7.0 s = 6.43 m/s2

Now, calculate the force:

F = ma = (5.5 × 103 kg) × (6.43 m/s2)

F = 35,365 N

Therefore, the average net force exerted on the car and riders by the magnets is 35,365 newtons.