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

Author Question: A rock dropped from a 5-m height accelerates at 10 m/s2 and strikes the ground 1 s later. If the ... (Read 342 times)

mynx

  • Hero Member
  • *****
  • Posts: 555
on: Jul 29, 2018
A rock dropped from a 5-m height accelerates at 10 m/s2 and strikes the ground 1 s later. If the rock is dropped from a height of 2.5 m, its acceleration of fall is
 
  A) half.
  B) the same.
  C) twice.
  D) four times as much.

Question 2

A ball starting from rest at the top of an inclined plane accelerates at 2 m/s2 and reaches the bottom of the plane in 3 seconds. What is the length of the plane?
 
  A) 2 m
  B) 3 m
  C) 5 m
  D) 9 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


mynx

  • Hero Member
  • *****
  • Posts: 555
Reply #2 on: Jul 29, 2018
Thanks


jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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).

Foliage height diversity and bird species diversity (data from MacArthur and MacArthur 1961). Foliage height diversity and bird species diversity (data from MacArthur and MacArthur 1961).
Feral Rock Pigeons are common pests in public spaces in cities Feral Rock Pigeons are common pests in public spaces in cities
Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ... Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ...
Depleted ground water Depleted ground water
Figure and Ground Figure and Ground
The height of your the rope after 1 minute to the nearest tenth of a meter is? The height of your the rope after 1 minute to the nearest tenth of a meter is?
Video: Nerve Impulse Transmission Animation

For a complete list of videos, visit our video library