WS 13: Forklift
Thursday, April 05, 2012
Workshop: The 100-kg crate rests on the forks of the lift. The coefficient of friction between the forks and the crate is
. Determine the largest initial angular acceleration that can be applied to lift the crate w

WS 11: Rolling Cylinder
Thursday, March 15, 2012
A disk of radius is constrained to roll without slipping at points A and B. If the plates have the velocities shown,
determine:
A. the location of the IC relative to point B
B. the angular velocity of the d

WS 9: Rotation and jack stand
Thursday, March 01, 2012
1. A wheel starts from rest and experiences an angular acceleration of
,
where
. After 2 seconds, what are the rotational displacement of
the wheel, and the magnitude of the velocity and acceleration

WS 8: Boy on tetherball
Tuesday, February 28, 2012
12:30 PM
Workshop: A 50-kg boy holds onto a ring attached to a pole by a chain as he runs in a circle
around the pole. When he lifts his feet off the ground he is traveling at 2.5 m/s (horizontally,
tange

WS 7: Impact of two disks
Thursday, February 23, 2012
12:30 PM
Two disks ( = 2 kg each) slide on a frictionless plane and collide at the origin of the axes shown.
Initially,
= 4 m/s (down) and
= 2 m/s (left). The coefficient of restitution is = 0.65. What

WS 6: Ice skater / Fighter jet
Tuesday, February 21, 2012
12:30 PM
1: An ice skater with a mass of 70-kg, initially at rest, throws an 8-kg block upward and away from
himself at an angle of
above the horizontal at an initial velocity of 2 m/s. It took him

WS 5: Truck up a hill
Thursday, February 16, 2012
12:30 PM
Workshop: How long could the 40-ton semi-trailer sustain a 0.5 ft/s2 acceleration
starting at 30 mph if its engine has a maximum power of 1000 hp and a mechanical
efficiency of = 80%? How fast is

WS 4: Box on Ramp
Thursday, February 09, 2012
12:30 PM
Workshop: A block with weight is initially at rest at A. It then slides down from A to B
along a frictionless, circular ramp, with a radius of . The horizontal surface from B to C
has length and is no

Workshop 3
Friday, February 03, 2012
2:00 PM
A small 500 g cylinder of negligible diameter moves along a horizontal surface due to the push of a rotating rod. The rod
rotates at a constant angular velocity of
-2 rad/sec.
A. At the instant where = 60 , wha

Dynamics (MCEN 2043/3043) Spring 2012 Knutsen
WORKSHOP 2: EQUATIONS OF MOTION
I have contributed to the solution of this workshop problem:
Name 1: Solution _ Name 3: _
Name 2: _ Name 4: _
1. Finished goods in a factory slide down an inclined plane to the

Dynamics (MCEN 2043/3043) Spring 2012 Knutsen
WORKSHOP 1: RELATIVE MOTION
I have contributed to the solution of this workshop problem:
Name 1: Solution _ Name 3: _
Name 2: _ Name 4: _
A train travels north (positive -direction) at 100 mph, and a car trave