Question

Chapter: Laws of Motion

1. Descriptions of the motion of objects in various situations are given below. For each item indicated in bold, draw and label its free-body diagram (Diagram should correctly show the type, direction, and relative strength of each of the individual forces on the object.

a) A baseball player dives head-first into second base and slows down while sliding on the infield dirt. (Air resistance is negligible).

b) A feather is falling straight towards the ground at a constant speed.

c) A book is at rest on a gently-inclined ramp.

d) A bucket of water, attached to a rope, is slowing down as it is being being pulled upward out of a well. (Air resistance is negligible)

e) After filling up at a service station, your brother drives way - not realizing that he has left his cup of coffee on the roof of his car. As the car begins to move down the road at a constant acceleration, the cup stays in place on the roof.

f) A team of landscapers use a pair of horizontal ropes to pull an unplanted tree to the right across the lawn. The tree is speeding up as it is being pulled. Ignore air resistance and friction.

g) You hold a picture motionless against a wall by pressing on it, as shown.

Answer 1

The last one has diagram missing...

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