« previous next »

Author Question: In 20 minutes, Kara ran 2.40 km on a treadmill facing due east. Relative to the gym, what were her ... (Read 61 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 28, 2018
In 20 minutes, Kara ran 2.40 km on a treadmill facing due east. Relative to the gym, what were her displacement and average velocity during this time interval?
 a. 0; 0
  b. 0; 2.00 m/s
  c. 2.40 km, east; 0
  d. 2.40 km, east; 2.00 m/s, east
  e. 2.40 km, west; 2.00 m/s, west

Question 2

A car travels north at 30 m/s for one half hour. It then travels south at 40 m/s for 15 minutes. The total distance the car has traveled and its displacement are:
 a. 18 km; 18 km S.
  b. 36 km; 36 km S.
  c. 36 km; 36 km N.
  d. 90 km; 18 km N.
  e. 90 km; 36 km N.


ndhahbi

  • Sr. Member
  • ****
  • Posts: 390
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Relative permeability of an artificial phospholipid bilayer to a variety of solutes. Relative permeability of an artificial phospholipid bilayer to a variety of solutes.
Treadmill ¬exercise stress test. Treadmill ¬exercise stress test.
Sunset Diagram of changes in East and West from Solstice Sunset Diagram of changes in East and West from Solstice
Double-label fluorescence microscopy can visualize the relative distributions of Double-label fluorescence microscopy can visualize the relative distributions of
Climate Change in East Asia Climate Change in East Asia
East Coast Estuaries East Coast Estuaries
Video: HIV Infection: Viral life cycle

For a complete list of videos, visit our video library