Solve the following. Round to the nearest tenth when needed. 1. A woman pulls a wagon along level sidewalk by exerting a force of 18 pounds on the wagon handle, which makes an angle of 25° with the horizontal. How much work is done as she pulls the wagon 200 feet?
Solve the following. Round to the nearest tenth when needed. 1. A woman pulls a wagon along level sidewalk by exerting a force of 18 pounds on the wagon handle, which makes an angle of 25° with the horizontal. How much work is done as she pulls the wagon 200 feet?
Solve the following. Round to the nearest tenth when needed. 1. A woman pulls a wagon along level sidewalk by exerting a force of 18 pounds on the wagon handle, which makes an angle of 25° with the horizontal. How much work is done as she pulls the wagon 200 feet?
Transcribed Image Text:Solve the following Round to the nearest tenth when needed.
A woman pulls a wagon along level sidewalk by exerting a force of 18 pounds on the wagon handle, which makes
an angle of 25° with the horizontal. How much work is done as she pulls the wagon 200 feet?
1.
2. A sled on an inclined plane weighs 500 lb, and the plane makes an angle of 50° with the horizontal. What force,
perpendicular to the plane, is exerted on the plane by the sled?
Transcribed Image Text:3. A ship leaves port and travels 49 miles at a standard position angle of 30°. The ship then travels for 89 miles in a
standard position angle of 70°. At that point, the ship drops anchor. A helicopter, beginning from the same port,
needs to join the ship as quickly as possible. Tell the helicopter's pilot how to get to the ship.
4. A plane is traveling at 400 mph along a path 40° North of East. A strong wind begins to blow at 50 mph from
North to South. If no adjustment is made for the wind, what are the resulting bearing and grounds peed of the
plane? (Hint: North to South means the angle would be -90" or 270.)
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
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