Physics, 12.02.2021 03:20 anjah

Physics Question: Worth 90 Points A small section of a roller coaster consists of two hills and two dips. Three roller coaster cars (200 kg each) were lifted to the top of a hill that is 22 meters high.

(a) How much work was done by the lift motor to get the cars to the top of the first hill (point B )?

(b) How much total mechanical energy does the car have at the top of the first hill (point B ) if it temporarily paused before it descends to point C ?

(c) What is the maximum speed that the coaster cars can attain at point C ?

(d) What is the net force on a 100 N passenger at point C ?

(e) What will be the net force on the same 100 N passenger at point D ?

(f) Will the cars maintain contact with the track at the top of the 14 meter tall second hill? Explain.

(g) What would be the minimum height of hill two (point D ) for the passenger in the cars to just maintain contact with the seat?

(h) What would be the g-force on the passenger at point D?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 14:00, camballard3848

Two red blood cells each have a mass of 9.0 multiply. gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries −2.50 pc of charge and the other −3.10 pc, and each cell can be modeled as a sphere 7.5 μm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer

Answers: 2

continue

Physics, 22.06.2019 00:30, AnastasiaJauregui

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

Answers: 1

continue

Physics, 22.06.2019 17:40, kimberly01262016

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

Answers: 1

continue

Physics, 23.06.2019 02:00, raptortrainor2013

Farmer a has a deep well and needs a lot of water for her animals and crops. her neighbor, farmer b, has a shallower well. he needs less water than farmer a because his farm is smaller. in years of drought, sometimes farmer b can't get any water from his wells. what can farmer b do to decrease the likelihood of his well running dry?

Answers: 3

continue

You know the right answer?

Physics Question: Worth 90 Points A small section of a roller coaster consists of two hills and two...