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
Softa [21]
3 years ago
7

A ball is thrown straight downward with a speed of 0.50 meter per second from a height of 4.0 meters. What is the speed of the b

all 0.70 seconds after it is released?
Physics
2 answers:
Bond [772]3 years ago
3 0
Assuming that reaching a height 0 doesn’t stop the ball, and that it accelerates at 9.8 m/s^2, the ball would be traveling at 0.5 + 0.7*9.8 = 7.36 m/s downwards.
Black_prince [1.1K]3 years ago
3 0

Answer: The speed of the ball 0.70 seconds after release is <u><em>7.36 m/s</em></u>

     

Explanation:

Using equation of motion in vertical direction and considering downward direction as positive

v_y=u_y +a_yt

where u_y= 0.50 \frac{m}{s} , a_y=g=9.80 \frac{m}{s^{2}} , t=0.70s

=> v_y=(0.5+9.8\times 0.70) \frac{m}{s}= 7.36\frac{m}{s}

Thus the speed of the ball 0.70 seconds after release is <u><em>7.36 m/s</em></u>

You might be interested in
Match the technology that uses radio waves to the field in which it is used
Elden [556K]

Answer:

Naturally occurring radio waves are made by lightning or by astronomical objects. Artificially generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, communications satellites, computer networks and innumerable other applications.

Explanation:

5 0
3 years ago
the engine of a car of amass of 2000 kg produced a force of 15000N find the acceleration of the car​
weqwewe [10]
I believe the answer would be 7.5 m/s^2
3 0
3 years ago
Fernanda is working on a physics project. she is experimenting by rolling a marble down a ramp and then seeing how far it rolls
Ratling [72]

The distance covered on the floor after leaving the ramp is the dependent variable.

  • As a result of the marble's size, the substance it is constructed of, and the angle at which it is placed onto the ground, the distance it rolls varies.
  • Therefore, the angle at which the marble is released onto the ground, the type of material used to make the stone, or its size can all be considered independent variables.
<h3>What is Independent variable?</h3>
  • There are independent and dependent variables in every experiment.
  • A variable is considered independent if its change is not influenced by the change in another variable or factor.
<h3>What is Dependent variable?</h3>

In any experiment, the dependent variable must be measured or determined, and it must change as the independent variable does.

Learn more about independent and dependent variable here:

brainly.com/question/1479694

#SPJ4

5 0
2 years ago
Calculate the kinetic energy of an 80,000 kg airplane that is flying with a velocity of 167 m/s.
liq [111]

Answer:

1115560000 J

Explanation:

1/2 * 80,000 * 167^2 m/s = 1115560000 J

7 0
2 years ago
You are riding on a school bus and suddenly get thrown forward . what did the buss just do
Ilia_Sergeevich [38]
B i think is the answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • Andre the Giant and Thumbelina are standing in the middle of an ice-skating rink facing each other. Andre the Giant pushes Thumb
    6·2 answers
  • What is the full definition of specific heat?
    15·2 answers
  • When the distance between two masses is doubled, the gravitational attraction between
    10·1 answer
  • Which of the following did the doll experiment not suggest?
    12·2 answers
  • The vibrations along a transverse wave move in a direction _________.
    12·1 answer
  • Help? 25 points and will give brainliest!
    13·1 answer
  • The picture represents the respiratory system.
    11·2 answers
  • List the 5 components of fitness<br>​
    13·1 answer
  • A bicycle has a momentum of 50.00 kg·m/s and a velocity of 5.0 m/s. What is the bicycle’s mass?
    7·1 answer
  • A transverse wave on a string is described by the wave functiony(x, t) = 0.350 sin (1.25x + 99.6t)where x and y are in meters an
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!