final_key - - _ - ) 1r. T hec able f t he I 8 00-kg levator...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
'| -_-) 1r . The cable of the I 800-kg elevator cab in the figure snaps when the cab is at rest at the first floor, where the cab bottom is a distance d= 3.7 m above a spring ofspring constant k = 0.l5 MN/m. A safety device clamps the cab against guide rails so that a frictional force of 4.4 kN opposes the cab motion.:.) Find the speed of the cab just before it hits the spdr+rg. O,ru,^,i . n W r/Y. - ? ^,*. 11uu*n . 9'*-X1) -l- | L.. , t) to d -- (!rt -0) + l0 - MXdt r\ \z v ' -= 1t 1rt -'t;!r,
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
I f,5 - T, = V'n, ru ttl {+nn^3c,l^e- 1 /Lnt_' q0 \,- ^t3. - nt ^ A4ci;y (r) )\t, ) (t) frt-d ()) - ntl _,1 Jq ..{ -= C'iz -1t' LIrr.tr 6.se.) -- l(-6znt Lt4 .s r &,i)t = 16 qn u ( u, + rv,"+ fz, z, i"t t( tr'Jo' tl 'ri N m1 (X+.t) Ittr,l tt )6 {.."t) f 't f.r^ tl' hrg rratJ;A ),r \J cve L-- (m1*nn, t,:d Pt mrQaB 1,1^ ,-| |,rr, ,t\ f =l.r(s- V4-P o'l',t') /^ The three blocks in the figure below are connected by massless cords and pulleys' Data: m1 8 kg, m2 2 kg, m: I kg. The coeffrcient of kinetic friction between mz and the incline is 0.2. (a) Show the free body force diagram. (b) Calculate the acceleration of ml, m2, ml. (c) Calculate tensions on the cords. (d) Calculate the normal force acting on m2.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

final_key - - _ - ) 1r. T hec able f t he I 8 00-kg levator...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online