ME 361- Final Exam Guide - Comprehensive Notes for the exam ( 108 pages long!)
30 Nov 2017
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Impulsive forces are so large you ignore weight as a force. Standard- keep weight and solve similar to f = ma with fbd. A 50 kg crate is pulled by the constant force p. if crate starts from rest and achieves a speed of 10 m/s. In 5s, determine the magnitude of p. use impulse/momentum. A 20,000 lb truck enters a 15 ramp at high speed (v ) travels 540 ft in 5. 5s before its speed is reduces to v /2. Constant deceleration, determine the initial speed v and magnitude of braking force. Impact: collision between two bodies categorized by mass centers and line of impact. Line of impact is normal to line of contact (cid:12254) These lines are referenced for equations of impact. Central: means mass centers are on the line of impact. Always the case for particles (cid:12254) (cid:12254) (cid:12254) Eccentric: one or both mass centers does not lie on the line of impact.
