281_Dynamics 11ed Manual

# 281_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Engineering Mechanics - Dynamics Chapter 14 ⎛ v2 ⎞ 1 ⎟ τ1 ⎝ t2 ⎠ kW τ 1 = 0 , 0.01 t1 .. t1 P1 (τ 1) = F1⎜ τ 2 = t1 , 1.01 t1 .. t2 Solution: P2 (τ 2) = F1⎜ ⎛ τ 2 − t2 ⎞ ⎛ v2 ⎞ 1 ⎟⎜ ⎟τ2 ⎝ t1 − t2 ⎠ ⎝ t2 ⎠ kW Power Power in kW 15 10 () 5 P2( τ 2) P1 τ 1 0 5 0 0.05 0.1 0.15 0.2 0.25 τ 1, τ 2 Time in s P max = P 1 ( t1 ) kW P max = 10.667 kW *Problem 14-64 Determine the required height h of the roller coaster so that when it is essentially at rest at the crest of the hill it will reach a speed v when it comes to the bottom. Also, what should be the minimum radius of curvature ρ for the track at B so that the passengers do not experience a normal force greater than kmg? Neglect the size of the car and passengers. Given: v = 100 km hr k=4 Solution: T1 = 0 T2 = 12 mv 2 0 + mgh = V1 = m g h V2 = 0 12 mv + 0 2 279 ...
View Full Document

## This note was uploaded on 08/16/2011 for the course EGN 3321 taught by Professor Christianfeldt during the Spring '08 term at University of Central Florida.

Ask a homework question - tutors are online