This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of ... (Read 115 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
on: Jul 28, 2018
An automobile of mass 2000 kg moving at 20 m/s is braked suddenly with a constant braking force of 10,000 N. How far does the car travel before stopping?
 a. 40 m
  c. 120 m
  b. 80 m
  d. 160 m

Question 2

A barefoot field-goal kicker imparts a speed of 30 m/s to a football at rest. If the football has a mass of 0.50 kg and time of contact with the football is 0.020 s, what is the force exerted on the foot?
 a. 190 N
  c. 600 N
  b. 380 N
  d. 750 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sarah_brady415

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


Starlight

  • Hero Member
  • *****
  • Posts: 567
Reply #2 on: Jul 28, 2018
Thank you!


sarah_brady415

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 28, 2018
Always glad to help...


« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Muscle Strength of the Hip, Abduction with Opposing Force Muscle Strength of the Hip, Abduction with Opposing Force
Pressure gradient force Pressure gradient force
Air-Mass Thunderstorms Air-Mass Thunderstorms
Moving currents are affected by Earth’s rotation Moving currents are affected by Earth’s rotation
Mass Wasting Triggers Mass Wasting Triggers
Question about Resultant of gravitational force? Question about Resultant of gravitational force?
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library