17.4- AT THE FAIRGROUND

Question 1

What centripetal acceleration values can be dangerous to the average person?

Answer 1

values of more than 20 to 3g

Question 2

On a ride that takes you at high speed through a big dip, what acts the centripetal force?

Answer 2

difference between support force on you and your weight

Question 3

Equation for when you’re at the bottom of the dip

Answer 3

S - mg = mv²/r

Question 4

Equation for maximum speed when swing passes through lowest point?

Answer 4

1/2mv² = mgh
v² = 2gh

Question 5

Equation for a person on a swing at the lowest point?

Answer 5

S - mg = mv²/L

Question 6

At maximum height on the Big Wheel, where does the reaction R from wheel on each person act?

Answer 6

acts downwards

Question 7

What is the resultant at maximum height on the Big Wheel equal to? (equation)

Answer 7

mg + R

Question 8

At the highest point on the Big Wheel, if the speed if v, what is the equation for the reaction R?

Answer 8

R = mv²/r - mg

Question 9

At a particular speed v such that v²=gr. what is the reaction R like? (Big Wheel)

Answer 9

R=0 so there would be no force on person due to wheel