(I) Sketch the free-body diagram of a baseball


(b) after it has left the bat and is flying toward the outfield. Ignore air resistance.

A heavy steel cable attached to a motor is lifting a girder. The girder is speeding up.(a) Draw an interaction diagram

Block A in FIGURE EX7.4 is sliding down the incline. The rope is massless, and the massless pulley turns on frictionless bearings, but the surface is not frictionless. The rope and the pulley are among the interacting objects, but you'll have to decide if they're part of the system. (a) Draw an interaction diagram

Block A in FIGURE EX7.4 is sliding down the incline. The rope is massless, and the massless pulley turns on frictionless bearings, but the surface is not frictionless. The rope and the pulley are among the interacting objects, but you'll have to decide if they're part of the system. (c) Draw a free-body diagram for each object in the system. Use dashed lines to connect members of an action/reaction pair.

The figure shows all the forces acting on an object. Which arrow could represent the acceleration of that object?

The figure shows all the forces acting on an object. What can you tell about the velocity of the object at this instant?