« previous next »

Author Question: A 1000-kg truck moving at 10 m/s that brakes to a stop in 5 s has an average braking force of A) ... (Read 50 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jul 29, 2018
A 1000-kg truck moving at 10 m/s that brakes to a stop in 5 s has an average braking force of
 
  A) 1000 N.
  B) 2000 N.
  C) 3000 N.
  D) 4000 N.
  E) 5000 N.

Question 2

You hold a 5-newton rock motionless in your hand. Regarding the forces on this rock,
 
  A) the net force on the rock is zero.
  B) the downward force of gravity is balanced by the upward force of air resistance.
  C) there are no forces of any kind acting on the rock, because it is not moving.
  D) the net force on the rock is 5 newtons, directed downward.
  E) the net force on the rock is 5 newtons, directed upward.


scottmt

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Muscle length versus isometric force Muscle length versus isometric force
On average, students in Roman Catholic schools score higher on national tests than students in ... On average, students in Roman Catholic schools score higher on national tests than students in ...
How to find the average value of a function How to find the average value of a function
1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ... 1) (a) What is Coulomb?s Law? (b) Find the net electrostatic force on the charge labeled ?P? in ...
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ... A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
Gravitational Force Due to a Distribution of Mass problem 2 Gravitational Force Due to a Distribution of Mass problem 2
Video: Fetal Development of the Cardiovascular System

For a complete list of videos, visit our video library