Due: June 23, 2008 (Mon)

Medium: Short bond , decorated

Format: Last Name, First Name

Yr. & Sec.

Physics

Type of Activity

Date

Questions:

- The following forces act on an object resting on a level, frictionless surface: 10 N to the north, 20 N to the east, 10 N at an angle 40° south of east, and 20 N at an angle 50° west of south. Find the magnitude and direction of the resultant force acting on the object.
- Find the magnitude and direction of the resultant of a 40-N force that acts at an angle of 63° clockwise from the +y-axis, a 15-N force that acts at an angle of 120° clockwise from the +y-axis, and a 30-N force that acts at an angle of 310° clockwise from the +y-axis.
- The following horizontal forces act on an object:
**A** has a magnitude of 6.0 lb and is in the +y-direction; **B** has a magnitude of 10.0 lb and is in the -x-direction; **C** has a magnitude of 8.0 lb and is at an angle of 45° clockwise from the +x-direction. Find the magnitude and direction of **A** + **B** – **C.**

- The vector
**A** has a magnitude of 10 cm and points 37° clockwise from the +y-direction. The vector **B** has a magnitude of 10 cm and points 37° clockwise from the +x-direction. Find the magnitude and direction of **A + B**, **A – B**, and **B – A**.
- George walks 4.0 km in one direction and 2.0 km in another direction to end up 5.0 km from where he started. What is the angle between the two directions?

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