Question

Part b

(10%) Problem 2: You have a horizontal grindstone (a disk) that is 93 kg, has a 0.36 m radius, is turning at 95 rpm (in the positive direction), and you press a steel axe against the edge with a force of 25 N in the radial direction. Otheexpertta.com ? 50% Part (a) Assuming that the kinetic coefficient of friction between steel and stone is 020 calculate the angular acceleration of the one in rad/s2 at 50% Part (b) what is the number of turns, N, that the stone will make before coming to rest? ed ed ed ed Grade Summary Deductions 6% Potential 94% sin0 coso Attompts remaining: 2 (2% per attempt) detaliled vievw n ain acos0 atano acotan0sinh0 cosh0 tanh0cotanh0 O Degrees Radians 1123 I give up! Hints-for au-deduction. Hints remaing:- Feedback: 1%.dedaction prr feedback.

Answer 1

friction, 시: o.20 (a (ar circular motion, toc. Torque,て-0,1 tohe, moment of netia - angulasr accelevation Ce 40) f. is the kive tic fictional forec Huf 1 = 0.298 hado 2 as the friction decvease the peed, the Should he negative Ofivst convert, ppm to Tod/s ion96 revolution xad 4win 95 bevolution min

Time required to ome rest of tha Stone 0.298 33 97 Sec the Now, 9n this the stone akes a dioplacement1 오 @g· Og + u0i t + 흐 α t (9.943 33.37)29)3 165-88 radiav ·o art radian → 4 satation 165.88 ˊㄒㄒㄧㄧ· totation 26 41 otation tuon