2- In The System Given In The Figure, The Mass Of A Is 4 Kg And The Mass Of B Is 3 Kg. The Reel Is In The Shape Of A Homogeneous Cylinder. The Reel Has A Radius Of 0.1 M And A Mass Of 2 Kg. The Kinetic Friction Coefficient On The Table Surface Is 0.2. A)

匿名用户 最后更新于 2021-12-01 19:31 物理类Physics

2- In the system given in the figure, the mass of A is 4 kg andthe mass of B is 3 kg. The reel is in the shape of a homogeneouscylinder. The reel has a radius of 0.1 m and a mass of 2 kg. Thekinetic friction coefficient on the table surface is 0.2.

a) With what acceleration does the system move whenreleased?
b) What are the tensile forces on the rope connecting the A and Bmasses?
c) What is the speed of mass A when mass B goes down 0.2 m?
d) What is the angular velocity and angular acceleration of thepulley when the mass B descends 0.2 m?
e) By removing the pulley from its place and assembling a pulleywhose moment of inertia is unknown, the masses are released. It isobserved that the B mass descends 0.6 m in 0.5 s. In this case, howmany kg m2 is the moment of inertia of the reel?

(Not: Neglect the friction on the roller.)

A B

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