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

Author Question: A ball is pushed downhill with an initial velocity of 3.0 m/s. The ball rolls down a hill with a ... (Read 135 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 28, 2018
A ball is pushed downhill with an initial velocity of 3.0 m/s. The ball rolls down a hill with a constant acceleration of 1.6 m/s2 . The ball reaches the bottom of the hill in 6.0 s. What is the ball's velocity at the bottom of the hill?
 a. 10 m/s
  c. 16 m/s
  b. 13 m/s
  d. 17 m/s

Question 2

A strobe photograph of a car moving along a straight road shows the interval between each successive image to be diminishing. If the direction of motion of the car is taken as positive, which of the following are negative?
 a. the speed of the car
  c. the average acceleration of the car
  b. the average velocity of the car
  d. all of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kimmy

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


CharlieWard

  • Member
  • Posts: 578
Reply 2 on: Jul 28, 2018
Wow, this really help

T4T

  • Member
  • Posts: 348
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction
Eye ball perfectly labelled (map) Eye ball perfectly labelled (map)
The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h
Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ... Ethanol has the molecular formula C2H6O. Which ball and stick model shown above represents ...
Ball-and-stick models of A=T and G≡C base pairs Ball-and-stick models of A=T and G≡C base pairs
Allyl isothiocyanate, ball and stick model Allyl isothiocyanate, ball and stick model
Video: Introduction to Breast Cancer

For a complete list of videos, visit our video library