subject
Physics, 29.12.2021 19:10 ppennycuff405125

A plank with a mass M = 7.00 kg rides on top of two identical, solid, cylindrical rollers that have R = 4.60 cm and m = 2.00 kg. The plank is pulled by a constant horizontal force F with arrow of magnitude 6.10 N applied to the end of the plank and perpendicular to the axes of the cylinders (which are parallel). The cylinders roll without slipping on a flat surface. There is also no slipping between the cylinders and the plank. Required:
a. Find the initial acceleration of the plank at the moment the rollers are equidistant from the ends of the plank. magnitude m/s^2 direction right
b. Find the acceleration of the rollers at this moment. magnitude m/s^2 direction right
c. What friction forces are acting at this moment? (Let fp be the frictional force exerted by each roller on the plank, and let fg be the rolling friction exerted by the ground on each roller.) fp = N direction left fg = N direction right

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 19:30
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.
Answers: 3
question
Physics, 22.06.2019 20:30
The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?
Answers: 2
question
Physics, 22.06.2019 23:00
Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.
Answers: 3
question
Physics, 23.06.2019 01:40
When you see distant streetlights through smog, they look dimmer and redder than they do normally. but when you see the same streetlights through fog or falling snow, they look dimmer but not redder. use your knowledge of the interstellar medium to discuss the relative sizes of the particles in smog, fog, and snowstorms compared to the wavelength of light.
Answers: 3
You know the right answer?
A plank with a mass M = 7.00 kg rides on top of two identical, solid, cylindrical rollers that have...
Questions