An 125 kg astronaut, floating motionless in space, pushes away a 15 kg toolbox which goes flying off with a speed of 4.0 m/s.  What speed is the astronaut moving after pushing away the toolbox?

The contact time of a golf club with a 45 g golf ball is 3.5×10-3 s, during which time the club exerts an average force of 685 N on the ball.  Determine the speed of the ball just after contact.

Determine the linear momentum of a 3.0 kg object traveling at 12.0 m/s.

Three masses lie along the x-direction.  A mass M is at the origin, a mass 2M is at x = a, and a mass 3M is at position x = 2a.  Determine the position of the center of mass relative to the origin.

How fast are the riders of on a 36.0 m diameter Ferris wheel moving when it is rotating at 2.5 rpm?

How long does it take a dvd to spin up, from rest, to 675 rpm with an angular acceleration of 32.0 rad/s2?

p1(7).png    L = 3.00 m F1 = 12.0 N     F2 = 16.0 N     F3 = 20.0 N θ1 = 70.00       θ2 = 25.00       θ3 = 10.00  Determine the torque about the point C.

p18(1).png The uniform board has a length of 5.00 m and total mass of 12.0 kg.  Determine the torque due to gravity about the pivot for q = 30.00.

When performing tube testing for an antibody screen,  you see one large sized agglutinate in a clear background. How would you grade this reaction?

p9(1).png A 65.0 kg person stands a distance d = 2.5 m from one end of a uniform plank of mass 25.0 kg and length 8.0 m suspended by ropes at each end.  Determine the tension in the rope nearest to the person.