1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Butoxors [25]
4 years ago
6

A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time th

e acceleration of the ball is always
A) in the direction of motion.
B) opposite its velocity.
C) directed upward.
D) directed downward.
Physics
1 answer:
kozerog [31]4 years ago
3 0

Answer: D) directed downward.

Explanation:

We know that the constant acceleration of 9.87ms^{-2} of every-thing is always DIRECT DOWNWARDS because of the to the influence of the gravity of the Earth.

This motion is denoted as free fall motion , where the acceleration due to the gravity is constant 9.87ms^{-2}.

∴ A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always  directed downward.

Hence, the correct answer is D) directed downward..

You might be interested in
What evidence can you cite to support the claim that the frequency of light does not change upon reflection?
soldier1979 [14.2K]

Answer: The color of an image is equal to the color of the item forming the picture. When you have a take a observe your self in a mirror, the color of your eyes would not alternate. The reality that the color is equal is proof that the frequency of light would not alternate upon reflection.

8 0
4 years ago
A rock is suspended from a string, and it accelerates downward. Which one of the following statements is correct? Group of answe
Tems11 [23]

Answer:

a. The magnitude of the tension in the string is greater than the magnitude of the weight of the rock.

Explanation:

During the motion of the rock while it is in downward motion we can say

T - mg cos\theta = ma_c

since it is performing circular motion so we will have its acceleration towards its center

T = mgcos\theta + ma_c

a_c = \frac{v^2}{L}

T = mgcos\theta + \frac{mv^2}{L}

So at the lowest point of the path we can say

T = mg + \frac{mv^2}{L}

so correct answer is

a. The magnitude of the tension in the string is greater than the magnitude of the weight of the rock.

4 0
3 years ago
What colors of light are absorbed when white light falls on a green object?
Ipatiy [6.2K]

I'm doing this test later today so I'll let you know the answer

4 0
3 years ago
Read 2 more answers
Which of the following statements is INCORRECT based on our Ray Model of Light?
viva [34]

Answer:

a and c

Explanation:

a)light moves in a straight line and distracts when it encounters an obstacle forming a shadow

c)the light rays from that object or also tgose from the image must enter your eye for you to see that image

8 0
3 years ago
I have two of these so if you think this is easy then another free ten points in my profile!
Agata [3.3K]

Answer:

z

Explanation:

x repersents a new moon and the others repersent quarter moons

(x is a new moon because new moons are often the phase when the moon is close to earths sun)

7 0
3 years ago
Read 2 more answers
Other questions:
  • BIO EST The archerfish (genus Toxotes) preys on land-based insects inhabiting tree limbs above the water. It has the ability to
    10·1 answer
  • A music tuner uses a 550 Hz tuning fork to tune the frequency of a musical instrument. If the tuner hears a beat frequency of 2
    14·1 answer
  • A vinyl record is played by rotating the record so that an approximately circular groove in the vinyl slides under a stylus. Bum
    14·1 answer
  • In the sum A→+B→=C→, vector A→ has a magnitude of 13.6 m and is angled 40.2° counterclockwise from the +x direction, and vector
    12·1 answer
  • an object has a velocity of 0.12 rad/s. how many revolutions will the object make after traveling for 30 seconds?
    10·1 answer
  • How is an electric field similar to a gravitational field?
    8·2 answers
  • Conditional waves contain a crest, trough, wavelength, and amplitude<br> True or False?​
    7·1 answer
  • a stone is thrown horizonttaly from a cliff of a hill with an initial velocity of 30m/s it hits the ground at a horizontal dista
    12·1 answer
  • What type force is your answer in number 4
    11·1 answer
  • in the presence of air drag, an object of mass 0.126kg falls from height of 15.2m to 7.9m with the terminal speed v. How much wo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!