Understanding Force and Motion

Identify the directions of vectors A and B in the figure.

• 30 degrees north east

• 45 degrees south of west

Specify the directions of vectors A, B, C, and D in the figure.

• 50 degrees north of east

• 45 degrees northwest

• 20 degrees south of east

• south

What is the difference between balanced and unbalanced forces?

How do forces act on objects?

What happens when forces are unbalanced?

What happens when the forces are balanced?

Which way will the boxes move?

What is the resultant of two constant forces of 40 N each acting simultaneously on an object if: (a) both forces are horizontal and pulling the object to the east; (b) both forces are horizontal, with one force pulling the object to the east and the other pulling it to the west; and (c) one force is acting to the north, while the other force is acting to the east? (d) Based on the net force, in which situation(s) are the forces unbalanced? In which situation(s) are the forces balanced? (e) Assuming that the object is initially at rest, what is the effect of the forces mentioned in situations (a), (b), and (c)?

How is your understanding of the topic enable you to understand the concept of force and motion?

Determine Eric's resulting displacement (magnitude R) after he leaves the base camp and hikes 11 km, north and then hikes 11 km east.