1. King Fahd University of Petroleum & Minerals Mechanical Engineering Dynamics ME 201 BY Dr. Meyassar N. Al-Haddad Lecture # 32

2. General Application of the Equations of Motion Summation of moment in FBD = summation of the kinetic moment in K.D

3. Rectilinear Translation

4. Curvilinear Translation

5. slipping Vs. Tipping x N If x > 1.5 ft tipping If x < 1.5 ft slipping

6. Slipping Vs. Freely rotating FA=sNAFA=sNA NANA NBNB mg

7. “Wheely” Vs. Non-Wheely N B =0 Wheely : lift the front wheel off the ground

8. Example

9. If x > 0.5 m tipping will take place Example  k =0.2 a= ? Flip Or Tipp?

10. Example m m =125 kg m R = 75 kg a= ? N B =? F B =?  s =? Minimum to Lift front wheel

11. Example m BD =100kg m AB =m CD = Neglect  = 30 o  = 6 rad/s T A = ? T D = ? a G =?

12. Problem m= 80 kg  B =0.8 N A =? N B =? When rear wheel locks for break a =? Deceleration NANA NBNB BNBBNB aGaG

13. Problem m= 80 kg  B = ? N A =? N B =? a =? When traveling at constant velocity and no break was applied NANA NBNB BNBBNB a = 0

14. Problem m= 80 kg N A =? N B =? a =?  k =? minimum When rider applies the front break and back wheel start to lift off the ground NANA N B =0 kNAkNA