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

Author Question: Suppose a ball is thrown straight up, reaches a maximum height, then falls to its initial height. ... (Read 108 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
Suppose a ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is going up.
 
  A) Both its velocity and its acceleration point upward.
  B) Its velocity points upward and its acceleration points downward.
  C) Its velocity points downward and its acceleration points upward.
  D) Both its velocity and its acceleration points downward.
  E) Neither velocity nor acceleration can be determined without additional information.

Question 2

Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. When they hit the ground
 
  A) both of them will have the same kinetic energy.
  B) the heavier one will have twice the kinetic energy of the lighter one.
  C) the heavier one will have four times the kinetic energy of the lighter one.
  D) the heavier one will have times the kinetic energy of the lighter one.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

Missbam101

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

A pair of humpback whales lunge feeding through a bait ball A pair of humpback whales lunge feeding through a bait ball
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
When the voltage drop reaches approximately 1.20 volts, the PCM turns on a transistor. The ... When the voltage drop reaches approximately 1.20 volts, the PCM turns on a transistor. The ...
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ... Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...
In Falls, Energy Is Transmitted Along the Skeletal System In Falls, Energy Is Transmitted Along the Skeletal System
A highway curve of radius 80 m is banked at 45°. Suppose that an ice storm hits, and the ... A highway curve of radius 80 m is banked at 45°. Suppose that an ice storm hits, and the ...
Video: Carbohydrate Metabolism: Introduction to renal processes and filtrate formation and composition

For a complete list of videos, visit our video library