« previous next »

Author Question: A 1-kg rock that weighs 10 N is thrown straight upward at 20 m/s. Neglecting air resistance, the net ... (Read 75 times)

crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
on: Jul 29, 2018
A 1-kg rock that weighs 10 N is thrown straight upward at 20 m/s. Neglecting air resistance, the net force that acts on it when it is half way to the top of its path is
 
  A) less than 10 N.
  B) 10 N.
  C) more than 10 N.

Question 2

A rock is thrown vertically into the air. At the top of its path, its acceleration is
 
  A) zero.
  B) 10 m/s2.
  C) between 0 and 10 m/s2.
  D) greater than 10 m/s2.


tanna.moeller

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

crazycityslicker

  • Hero Member
  • *****
  • Posts: 537
Reply #2 on: Jul 29, 2018
Thank you!


tanna.moeller

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale. A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
Acquired resistance Acquired resistance
A dim headlight indicates excessive resistance in fuel pump circuit. A dim headlight indicates excessive resistance in fuel pump circuit.
Rock Art: Boat And Sea Battle Rock Art: Boat And Sea Battle
Rock-cut Tombs, Beni Hasan Rock-cut Tombs, Beni Hasan
Introduction of Water to Mantle Rock Introduction of Water to Mantle Rock
Video: Aneurysm

For a complete list of videos, visit our video library