Question

Suppose a 175 kg motorcycle is heading toward a hill at a speed of 35 m/s. The two wheels weigh 12 kg each and are each annular rings with an inner radius of 0.280 m and an outer radius of 0.330 m. (part a-b)

(25%) Problem 3: Suppose a 175 kg motorcycle is heading toward a hill at a speed of 35 m/s. The two wheels weigh 12 kg each and are each annular rings with an inner radius of 0.280 m and an outer radius of 0.330 m. Randomized Variables m= 175 kg v=35 m/s h=39 m 50% Part (a) How high can it coast up the hill, if you neglect friction in m? ha Grade Summary Deductions Potential 100 45 sin() cos tano cotan) asin() acoso atan) acotan() sinh0 cosh() | tanh) | cotanh) Degrees Radians Submissions Attempts remaining (4% per attempt) detailed view 1 - 0 CE Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 3 Feedback: 0% deduction per feedback. A 50% Part (b) How much energy is lost to friction if the motorcycle only gains an altitude of 39 m before coming to rest? All content 2019 F TATIC

Answer 1

Mass 6f mo to recycle Cm)= kg velocity cv) 35 m/s two wheels (mo)=12kg each. mass of innerc readties Cru)a 0.28 and outerc radius cr) 0-33m. moment of inerctia (I)-R mo Cry?tr?) 2.2476 kgm?. 2.3476 (a) Consercvation of encrgy mvR= IW?+ mgh 2 X175 x (35) ? +X R.2476 x 35 0:33 + 175x9.8 Xh -> 55.12889 m Cb) fruction due to enercgy lost Tw2 -mgh, (hi=39m) mv2 o 3994J 27661