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
slava [35]
3 years ago
12

Archer shoots his arrow towards a target at a distance of 90 m and hits bullseye . Calculate the acceleration and time taken by

the arrow to hit the target with a velocity of 90.0 m/s
Physics
1 answer:
goldfiish [28.3K]3 years ago
3 0

Answer:

acceleration = 45 m/s²

Time = 20 seconds

Explanation:

We are given;

Distance; s = 90m

Final velocity;v = 90 m/s

Since shot from rest, initial velocity;u = 0 m/s

So, to find the acceleration, we can use Newton's 2nd law of motion which is;

v² = u² + 2as

Where a is acceleration

Plugging in the values;

90² = 0² + 2a(90)

8100 = 180a

a = 8100/180

a = 45 m/s²

Now, for the time, we will use Newton's 1st law of motion which is;

v = u + at

Where t is time;

So;

90 = 0 + 4.5t

90 = 4.5t

t = 90/4.5

t = 20 seconds

You might be interested in
How do you double the speed in physics
Mariulka [41]

You measure the open distance between the floor and the bottom surface of the gas pedal.  Then you press the gas pedal down 1/2 of that distance.

3 0
3 years ago
Answer please I need help
madam [21]

Answer:

1) F

2) A

3) B

4) E

5) C

6) D

6 0
3 years ago
I need help with part D
natka813 [3]
1).  The little projectile is affected by friction all the way through the block.
Friction robs some kinetic energy.

2).  The block is affected by friction as it scrapes along the top of the post.
Friction robs some kinetic energy.

3).  The block is also affected by friction with the air (air resistance) as it
falls to the ground.  Friction robs some kinetic energy.
8 0
3 years ago
Pressing two objects together with more force __________ friction
AysviL [449]
Pressing two objects together with more force Increase friction
6 0
3 years ago
Is there any change in the pressure of container filled with water when the volumed is increased
marshall27 [118]
Not really the volume of a container is simply length X width X depth so just how big the container unless the water is pressurized by some sort of weight or if the containers air pressure is lowered
7 0
3 years ago
Other questions:
  • The motion of an object parallel to the earth's surface is
    12·1 answer
  • Which material is the LEAST dense?
    6·2 answers
  • Mary needs to row her boat across a 190 m -wide river that is flowing to the east at a speed of 1.3 m/s . mary can row with a sp
    15·1 answer
  • Describe how we can use scientific knowledge and reasoning to help guide us when making decisions
    12·1 answer
  • PLEASE HELP!!!
    5·1 answer
  • What does a chemial formula represent
    8·1 answer
  • What is the wavelength of a wave traveling with a wave speed of 1348 m/s
    10·1 answer
  • Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than th
    13·2 answers
  • What are some limitations to your direct observations of your environment? Give an example of an observation that could be made
    14·1 answer
  • A cat jumps from a balcony. About how fast is the cat moving after 1.5 s?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!