Question

ll Reep y eyes on my own work. I will not permit my work to be copied by others 3. I have neither stolen nor this quiz prior to the quiz time lg the quiz, and in particular if I leave for the washroom, I will not check course material on an electronic device or writen notes 6. I agree that actions described in points 2 through 5 are profoundly dishonest and dishonourable. They represent academic offences that can lead to sanctions ranging from failure in the course to expulsion from the University improperly accessed or obtained a copy of 1. (23 marks) The 102kg box at right is being pulled up a slope by a rope with a tension force of T (in Newtons). (a) What tension force, T, would be required for the box to accelerate up the slope at a rate of Im/s? Assume pa-0.2 (b) What tension force, T, would be required for the box to accelerate down the slope at a rate of Im/s? Assume -0.2 (c) If T-0, what is the minimum required so that the box does not slide down? T 45 Up the slope (d) If T---0, what would be the acceleration of the block down the slope? 30 2. (a) Who was the first person to systematically study friction, and (b) What branch of science was born from his/her work in this area? (2 marks)

Answer 1

auclunhen aloy wedse Sin Tcosys- SiM3u N - l02- Tsinus ! .N2 861562- I ( 5 ra) 1 02966.562- T (sc6-5i2 IO > T- 414.04 N 2 T ; 775.6224 Por doon waid au eluahoy 2 toszo TSMS = 102)(4.41) f3 N: lo2 T: 397.743N S62- 0-2 (7(u81al co130 Sim 30 C) STo MiniuM Sn30 Tmus m C 30 = tom30 0.5173 d) Ju block wil auduate downuwnid achion Tnns den aaud acieleahon a-