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

Author Question: A ball thrown vertically upward, at the top of its path (just before it starts to fall) has: a. an ... (Read 62 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 28, 2018
A ball thrown vertically upward, at the top of its path (just before it starts to fall) has:
 a. an instantaneous speed of zero.
  b. the same instantaneous speed it had throughout its trajectory.
  c. gone as low as it is going to go.
  d. an instantaneous speed of 10 meters per second.
  e. an acceleration of zero.

Question 2

Ignoring air resistance, which of these is the acceleration of a falling object?
 a. The length of time it takes to reach the ground.
  b. About 10 (meters per second) per second.
  c. About 10 (meters per second) per meter.
  d. About 10 meters per second.
  e. Falling objects fall at different speeds, so none of these answers can be right.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sabina576

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

b


jeatrice

  • Member
  • Posts: 543
Reply 2 on: Jul 28, 2018
Excellent

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Pronation and Supination Pronation–Lying prone (face downward); also turning the palm downward. Supi Pronation and Supination Pronation–Lying prone (face downward); also turning the palm downward. Supi
Gene duplication and mutation: one path to generate new enzymatic activities Gene duplication and mutation: one path to generate new enzymatic activities
Fall Fall
A typical ball-peen hammer. A typical ball-peen hammer.
How to vertically shift a sinusoidal function (y=a*sin⁡b(x−c)+d) How to vertically shift a sinusoidal function (y=a*sin⁡b(x−c)+d)
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: Osteoporosis

For a complete list of videos, visit our video library