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
natali 33 [55]
3 years ago
5

A circus acrobat is shot out of a cannon with an initial upward speed of 34 ft/s. if the acrobat leaves the cannon 4 ft above th

e ground, how long will it take him to reach a net that is 8 ft above the ground
Physics
1 answer:
jok3333 [9.3K]3 years ago
6 0
<h2>It will take 0.125 seconds to reach the net.</h2>

Explanation:

Initial speed, u = 34 ft/s = 10.36 m/s

Acceleration, a = -9.81 m/s²

Displacement, s = Final height - Initial height = 8 - 4 = 4 ft = 1.22 m

We have equation of motion, s = ut + 0.5 at²

Substituting

              s = ut + 0.5 at²

              1.22 = 10.36 x t + 0.5 x -9.81 x t²

              4.905t² - 10.36 t + 1.22 = 0

              t = 1.99 s     or    t = 0.125 seconds

Minimum time is 0.125 seconds.

It will take 0.125 seconds to reach the net.

You might be interested in
How does the number of valence electrons affect the reactivity?
ololo11 [35]
The less valence electrons the more reactive the element is.
6 0
3 years ago
7. How long does it take a ball rolling down a hill to change its speed from 3 m/sec to 34.5 m/sec
lys-0071 [83]

The time elapsed is 9 seconds

Explanation:

The motion of the ball is a uniformly accelerated motion (a motion with constant acceleration), so we can use the following suvat equation:

v=u+at

where :

v is the final velocity  of the ball

u is the initial velocity

a is the acceleration

t is the time  elapsed

For the ball in this problem, we have:

u = 3 m/s is the initial velocity

v = 34.5 m/s is the final velocity

a=3.5m/s^2 is the acceleration

Solving for t, we find the time taken for this change in velocity:

t=\frac{v-u}{a}=\frac{34.5-3}{3.5}=9 s

Learn more about acceleration:

brainly.com/question/9527152  

brainly.com/question/11181826  

brainly.com/question/2506873  

brainly.com/question/2562700  

#LearnwithBrainly

8 0
3 years ago
Can I get the answer this is due at 12​
Luba_88 [7]

Answer:

c is correct

Explanation:

Steel is a metal that is made from iron and carbon. During the steel making process, iron & carbon are melted together, and is allowed to harden into a solid. The iron and the carbon DO NOT chemically react with each other. After the steel was made, 20 samples were taken from one piece and tested. Each sample contained 98% iron and 2% carbon.

Which of the following terms BEST describes steel? homogeneous mixture

3 0
2 years ago
Read 2 more answers
What is the resistance of a circuit with a voltage of 10 volts (V) and a current of 5 amps (A)? Use Ohm’s law to calculate the r
iogann1982 [59]

Answer: 2Ω

Explanation:

V = IR

R = V/I

R = 10/5 = 2Ω

Hope it helped!

5 0
3 years ago
Read 2 more answers
Where would you find water on the moon?
Anika [276]

nowhere because if there was water on the moon the water would float away but besides that it would be in the inner core of the moon


3 0
3 years ago
Other questions:
  • is it true a behavior adaptation is a biochemical change within that organism that helps it survive or maintain homeostasis
    6·1 answer
  • Newton's law of gravitation states that two masses will ______.
    9·2 answers
  • A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw
    14·1 answer
  • Over 4 seconds, a car's momentum decreases by 1000 kg m/s how much force did it take to make this happen?
    14·1 answer
  • The drawing shows a plot of the output emf of a generator as a function of time t. The coil of this device has a cross-sectional
    15·1 answer
  • Car A has a mass of 2000 kg and is going 28 m/s east.
    15·1 answer
  • A microphone is attached to a spring that is suspended from the ceiling, as the drawing indicates. Directly below on the floor i
    13·1 answer
  • A pool ball moving 1.83 m/s strikes an identical ball at rest. Afterward, the first ball moves 1.15 m/s at a 23.3° angle. What i
    7·1 answer
  • Which of the following is a chemical change?
    14·2 answers
  • The diagram below shows how sunlight is radiated back into the Earth's atmosphere as heat (infrared radiation).
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!