module 8 - 2d dynamics

5/22/2018 Module 8 - 2D Dynamics

1/7

Engineering SysteMotion: DynamicsParticles and BodiesTwo Dimensional 2D

This course is an introduction to the study of bodies

applied to engineering systems and structures.

School o

Dr. Wayne WhitemanDirector of the Office of Student Services

and Senior Academic Professional

School of Mechanical Engineering

5/22/2018 Module 8 - 2D Dynamics

2/7

Solve for the motion of mass centers of b

using Newton-Euler motion equations

Module 8 Learning Outcom

5/22/2018 Module 8 - 2D Dynamics

3/7

camF

Eulers 1stLaw

acceleration of mass center

FBD KD=

5/22/2018 Module 8 - 2D Dynamics

4/7

The truck shown below is traveling at 45 mph. Find the minimum stopping d

that the 250 lb crate will not slide. Assume the crate cannot tip over.

Used with permisMechanics: Dynam

5/22/2018 Module 8 - 2D Dynamics

5/7

The truck shown below is traveling at 45 mph. Find the minimum stopping d

that the 250 lb crate will not slide. Assume the crate cannot tip over.Initial velocity = 66 ft/secax= -9.66 ft/sec

2

If the deceleration exceeds 9.66 ft/sec2, there is not enough

friction and the crate will slide.

Used with permisMechanics: Dynam

5/22/2018 Module 8 - 2D Dynamics

6/7

The truck shown below is traveling at 45 mph. Find the minimum stopping d

that the 250 lb crate will not slide. Assume the crate cannot tip over.Assume initial displacement = 0 ftax= -9.66 ft/sec

2

v(t) = -9.66 t + 66

Used with permissiMechanics: Dynam

5/22/2018 Module 8 - 2D Dynamics

7/7

Worksheet: Find the acceleration of the blocks when released from rest.

Used with permissMechanics: Dynam