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

Author Question: An object is dropped from a height. Once it is moving, which of the following statements is true, at ... (Read 77 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
on: Jul 28, 2018
An object is dropped from a height. Once it is moving, which of the following statements is true, at least at one point?
 a. Its velocity is more than its acceleration.
  b. Its velocity is less than its acceleration.
  c. Its velocity is the same as its acceleration.
  d. Its velocity is never equal to its acceleration.

Question 2

A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 20.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the magnitude of the average acceleration of the ball during this time interval?
 a. 714 m/s2
  c. 6430 m/s2
  b. 1430 m/s2
  d. 12,900 m/s2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aloop

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

D


JGIBBSON

  • Member
  • Posts: 538
Reply 2 on: Jul 28, 2018
:D TYSM

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Gorillas moving in habitat Gorillas moving in habitat
Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. ( Normal development of posture and spinal curves. (A) Toddler: Protruding abdomen; lumbar lordosis. (
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Light rays coming from an object to the retina. Light rays coming from an object to the retina.
How to convert verbal statements into algebraic equations (Part 2) How to convert verbal statements into algebraic equations (Part 2)
Measuring the client’s height with a platform scale Measuring the client’s height with a platform scale
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

For a complete list of videos, visit our video library