# To be safe, the engineers making the ride want to be sure the normal force does not exceed 1.5 times each persons weight - and therefore adjust the frequency of revolution accordingly. What is the minimum coefficient of friction now needed?

The minimum coefficient of friction is 0.666

Explanation:

Suppose, In a classic carnival ride, patrons stand against the wall in a cylindrical shaped room. Once the room gets spinning fast enough, the floor drops from the bottom of the room! Friction between the walls of the room and the people on the ride make them the “stick” to the wall so they do not slide down. In one ride, the radius of the cylindrical room is R = 7.6 m and the room spins with a frequency of 20.9 revolutions per minute.

Given that,

The normal force does not exceed 1.5 times each persons weight

We need to calculate the minimum coefficient of friction

Using balance equation

Where, N = normal force

Put the value into the formula

Hence, The minimum coefficient of friction is 0.666

## Related Questions

Which information is necessary to determine an object's speed?
A.
distance and period of time

B.
distance and change in position

C.
period of time and direction

D.
distance and direction

The total distance of the object has traveled and the time it took to get to that distance.

So A.)

A

Explanation:

A snail crawls 300 cm in 1 hour. Calculate the snail's speed in each of the following units. A) cm/h B) cm/min C) m/h

A) 300cm/h
B)1 hr=60 min
300/60=5
5cm/min
C)1m=100cm
300/100=3
3m/h

Which scenario involves acceleration? a motorcycle at constant speed on a highway a recreational vehicle parked in a campground a car decreasing its speed due to a red light a teenager talking to friends at an intersection

A car decreasing its speed due to a red light is accelerating since there is a change in speed.

Acceleration is the rate of change of speed with respect to time. Acceleration is given by:

Acceleration = change in speed / time

A motorcycle moving at constant speed is not accelerating since there is no change in speed.

A recreational vehicle parked in a campground s not accelerating since there is no change in speed.

A car decreasing its speed due to a red light is accelerating since there is a change in speed.

Find out more at: brainly.com/question/24372530

a car decreasing its speed due to a red light

Explanation:

Acceleration of an object is defined as the rate of change in velocity of the object:

where

is the change in velocity

is the time elapsed

Therefore, we have a non-zero acceleration every time there is a change in velocity.

Among the examples given, we notice that only the following one:

"a car decreasing its speed due to a red light"

involves a change in velocity (because the car is decreasing its speed), therefore this scenario involves a non-zero acceleration.

Why is earth considered an open system and a closed system?