I sign in to x A Majid Cha x Y google do x 0 LabF Merm x D homework XC A 50 Lb B

Question

I sign in to x A Majid Cha x Y google do x 0 LabF Merm x D homework XC A 50 Lb B, xD Friction xB Review Tex Y determinex C when Twe x Mad -ox G C A https// umlumassonlinenet/bbcswebdav/pid-468504-dt-content-rid-1801410_1/courses/ENGN.2070MW1SP16/homework%208%20due%20Monday%20040416.p WE : Apps y Twitter O Pressure-Volume Diac S Differential Equations H Microsoft Word - The 100 lb AA “H. = 0.4 Frictionless 49 2. In the attached diagram, the cord is light and inextensible, and the pulley is massless and frictionless. (1) Show that block A will slide the plane on . (i) Determine the acceleration of block A. (ne ke Hat weloci Ly and accel of B is that a ) A pse do k 2 O. 8 300 k . ... 3. My Calculate the frictional forces between the block and the horizontal surface if the static and kinetic coefficients of friction are 0.6 and 0.55 respectively . 50 lag 90 F298, IN HO I'm Cortana. Ask me anything, a OT a to ( a th) B 8:25 PM 4/2/2016

Explanation / Answer

Here,

2)

a)

let the tension in the cable is T

for the block B to be stationary ,

2 T = 300 * g

T = 150 * g

Now , for the block A

maximum friction = us * m * g

maximum friction = 0.80 * 100 * g

maximum friction = 80 * g

as the maximum friction is less than the tension ,

the block A will slide.

B)

let the accelertion of block A is a

acceleration of block B is a/2

Using second law of motion for A and B

T - 80 * g = 100 * a

300 * g - 2 T = 300 * a/2

solving for a and T

a = 3.92 m/s^2

T = 1176 N

the acceleration of block a is 3.92 m/s^2

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---