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26 Nov 2019

Hi I have a test tomorrow. This is a question I cant seemtofigure out. Please help! A car traveling at 17 m/s on astraightroad. The diameter of the cars tire is 96 cm. If the carspeeds upwuth an acceleration of 2. m/s2 for 5secs. findthenumber of revolutions of the wheel during this period.
Please make the answer easy to understand. I dont getphysicsat all. Thanks, Chris

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Beverley Smith
Beverley SmithLv2
10 Mar 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Hi. Can you answer this questions for me please. It is onapractice test. I cant get it. A pilot is doing a vertical loopinhis plane. The pilots mass is 85kg The maximum force the pilotcanexperience before passing out is 5821 N (this is the force theseatexerts on the pilot) If the loop has a radius of 328m,determinethe max speed at which the pilot can perform the stunt.Please makethe answer easy to understand I dont get physics. ThanksChris

Hi, I have a test this afternoon and can not figure this ?out...Please any help would be great!

As you walk into an elevator, step onto a scale, and push theup button. You recall that your normal weight is 625N. Start eachof the following parts with a free-body diagram. A) If the elevatorhas an acceleration of magnitude 2.50 m/s2, what does the scaleread?
B) IF you start holding a 3.85kg package by a light verticalstring, what is the tension in the string supporting thepackage?

(a) What is the weight of a 5.78 kg backpack at the surface ofthe Earth?
56.7 N ( I understand this problem after some time :) )
(b) What is the weight of the same backpack at the surface of theMoon where the acceleration due to gravity is only 1.6 m/s2?
9.37 N (as well as this problem)

(c) If the backpack is atthe surface of the Earth, and if a net force of 8 N is applied tothe backpack, what is the amount of acceleration of thebackpack?
(Not sure here)

m/s^2
I was thinking A = Fnet/m
Fnet being the total force on the object being equal to G(mass ofthe earth)/(radius of the earth)^2
(I know it isn't as simple as adding 8N to the weight of backpackat the surface of the earth, if I divide by the net force thatisn't adding the net force to the weight...Please Help)


(d) If the backpack is atthe surface of the Moon, and if the same net force is applied tothe backpack, what is the amount of acceleration of thebackpack?
(If I don't understand C of course I am confused on this problem aswell, thank you for your help in advance I can figure out where togo with this problem if I understand C)

m/s2
Please explain to me so that I understand for test

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