This topic contains a solution. Click here to go to the answer

Author Question: You want to swim straight across a river that is 76 m wide. You find that you can do this if you ... (Read 78 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
You want to swim straight across a river that is 76 m wide. You find that you can do this if you swim at an angle of  = 28 from the upstream direction at a constant rate of 1.5 m/s relative to the water.
 
  At what rate does the river flow? The angle  is measured from the river bank (directly upstream is  = 0 while directly across the river is  = 90). A) 1.3 m/s
  B) 0.70 m/s
  C) 1.6 m/s
  D) 1.8 m/s

Question 2

A small boat is moving at a velocity of 3.35 m/s when it is accelerated by a river current perpendicular to the initial direction of motion. If the acceleration of the current is 0.750 m/s2, what will be the new velocity of the boat after 33.5 s?
 
  A) 25.3 m/s at 82.4 from initial direction of motion
  B) 25.3 m/s at 7.59 from initial direction of motion
  C) 640.1 m/s at 82.4 from initial direction of motion
  D) 640.1 m/s at 7.59 from initial direction of motion



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ansleighelindsey

  • Sr. Member
  • ****
  • Posts: 364
Answer to Question 1

A

Answer to Question 2

A



nramada

  • Hero Member
  • *****
  • Posts: 580
Both answers were spot on, thank you once again




 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

For a complete list of videos, visit our video library