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

Author Question: How much work is required to increase the velocity of a 4 kg car from rest to 5 m/sec? a. 10 b. 20 ... (Read 58 times)

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
How much work is required to increase the velocity of a 4 kg car from rest to 5 m/sec?
 a. 10 b. 20 c. 50 d. 100 e. 200 Joules

Question 2

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 20 m/s north, and the total acceleration of the car is 2.5 m/s2 37 south of west. Which of the following is correct?
 a. R = 0.40 km, and the car's speed is decreasing.
  b. R = 0.20 km, and the car's speed is decreasing.
  c. R = 0.20 km, and the car's speed is increasing.
  d. R = 0.16 km, and the car's speed is increasing.
  e. R = 0.16 km, and the car's speed is decreasing.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chou

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

c

Answer to Question 2

B




@Brianna17

  • Member
  • Posts: 550
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review


adf223

  • Member
  • Posts: 304
Reply 3 on: Yesterday
Gracias!

 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

For a complete list of videos, visit our video library