« previous next »

Author Question: A ball is pushed with an initial velocity of 4.0 m/s. The ball rolls down a hill with a constant ... (Read 110 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jul 28, 2018
A ball is pushed with an initial velocity of 4.0 m/s. The ball rolls down a hill with a constant acceleration of 1.7 m/s2 . The ball reaches the bottom of the hill in 7.0 s. What is the ball's velocity at the bottom of the hill?
 a. 15 m/s
  b. 13 m/s
  c. 14 m/s
  d. 16 m/s
  e. 19 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 is/are negative?
 a. the speed of the car
  b. the average velocity of the car
  c. the average acceleration of the car
  d. all of the above


jrpg123456

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

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

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ... A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ...
Schematic drawing of initial/terminal (I/T) lymph vessel. Schematic drawing of initial/terminal (I/T) lymph vessel.
MOMENTUM AND IMP meteor(158 kg) is moving with a velocity of 127 m/s , and breaks into two ... MOMENTUM AND IMP meteor(158 kg) is moving with a velocity of 127 m/s , and breaks into two ...
If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is
The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ... The decay constant of radon-222 is 0.181 d-1. If a sample of radon initially contains 6.00 × ...
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
Video: The Hypothalamus: The Body's Thermostat (Human Thermostat)

For a complete list of videos, visit our video library