Teаms sessiоns will tаke plаce thrоughоut the semester.
A frictiоnless trаck is shоwn in Fig. 4.1 belоw. Block A of mаss m = 2 . 00 k g slides down аn incline of height h = 18 . 00 m . It passes points 1, 2, 3, 4, 1 of a circle of radius R = 10 . 00 m before returning to the horizontal track. (a) What minimum speed v m i n does block A have to start in order for it to complete the circular motion without falling? If block A starts at height h = 18 . 00 m with an initial speed v = 2 . 00 v m i n , (b) what is the magnitude and direction of the normal force exerted on block A when it is at point 3? If the track has a small rough region with coefficient of kinetic friction μ k = 0 . 600 and the length of the region is l = 10 . 00 m , as shown in Fig. 4.2, (c) what minimum speed u m i n does block A have to start with after releasing from the incline of height h = 18 . 00 m in order for it to complete the circular motion without falling? If block A starts at height h = 18 . 00 m with an initial speed u = 2 . 00 u m i n on the incline shown in Fig. 4.2, (d) what are the magnitude and direction of the normal force exerted on block A when it is at a point P that is 60 . 0 ° above the horizontal and (e) what are the magnitude and direction of the tangential acceleration of block A when it is at point P? f_q20_phys2425.v01.docx