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

Author Question: When we say work is done by a force, we mean the force does a. all the work. b. positive work. c. ... (Read 79 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
When we say work is done by a force, we mean the force does
 a. all the work. b. positive work.
  c. negative work. d. zero work.

Question 2

Consider a situation where a constant force of 25 N acts on an object having a mass of 2 kg for 3 seconds.What is the magnitude of the change in the object's momentum?
 a. 150 kg m/s
  b. 50 kg m/s
  c. 75 kg m/s
  d. undeterminednot enough information given
  e. none of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nekcihc358

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

b

Answer to Question 2

c





 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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?

The average adult has about 21 square feet of skin.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

For a complete list of videos, visit our video library