« previous next »

Author Question: A ball is thrown straight upward with an initial speed of 30 m/s. Assuming there is no air ... (Read 157 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Jul 28, 2018
A ball is thrown straight upward with an initial speed of 30 m/s. Assuming there is no air resistance, how high does the ball go before falling back down?

Question 2

A bicyclist starts from rest at the top of a hill and rolls down the hill without pedaling. Assuming there is no friction and the bottom of the hill is 20 meters below the top, what is the bicyclist's speed at the bottom of the hill?


emsimon14

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

45.9 m

Answer to Question 2

19.8 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Straight Leg Raising Test Straight Leg Raising Test
Evidence that Light Travels at a Finite Speed Evidence that Light Travels at a Finite Speed
The piston creates a tumbling force as it moves upward. The piston creates a tumbling force as it moves upward.
Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away Packaging materials like zip-close bags, egg cartons, and takeout containers should be thrown away
A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ... A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ...
Allyl isothiocyanate, ball and stick model Allyl isothiocyanate, ball and stick model
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library