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
Sav [38]
3 years ago
8

A body moving with a velocity of 20m/s begins to accelerate at 3 m/s 2 . How far does the body move in 3 seconds

Physics
1 answer:
Andru [333]3 years ago
5 0

Given v_in = 20 m/s and a = 3 m/s2, assuming that the body moves at constant acceleration, the motion is modeled by the equation:

s(t) = (v_in)t + (1/2)a(t^2)

where s(t) is the distance traveled

substituting the given,

s(t) = 20t + (3/2)(t^2)

at t = 3

s(t) = 20(3) + (3/2)(3)^2

= 73.5 m

You might be interested in
A homeowner wants to reduce the environmental damage of the energy source used to heat her home.
liberstina [14]

Answer:

wind

Explanation:

wind is the only one of those onto that list that is a renewable source

4 0
3 years ago
Read 2 more answers
A person with mass mp = 76 kg stands on a spinning platform disk with a radius of R = 1.98 m and mass md = 191 kg. The disk is i
nalin [4]
<span>1.7 rad/s The key thing here is conservation of angular momentum. The system as a whole will retain the same angular momentum. The initial velocity is 1.7 rad/s. As the person walks closer to the center of the spinning disk, the speed will increase. But I'm not going to bother calculating by how much. Just remember the speed will increase. And then as the person walks back out to the rim to the same distance that the person originally started, the speed will decrease. But during the entire walk, the total angular momentum remained constant. And since the initial mass distribution matches the final mass distribution, the final angular speed will match the initial angular speed.</span>
3 0
3 years ago
A Rankine cycle with one closed feedwater heater with its drain cascaded backward has a water mass flow rate through the steam g
mamaluj [8]

Answer:Draw a T-s diagram for the ideal Rankine Cycle

Explanation:

6 0
3 years ago
The micturition reflex can be voluntarily controlled by the
ki77a [65]

Answer:

The micturition reflex can be voluntarily controlled by the relaxation of the external urethral sphincter.

3 0
3 years ago
A wave has a wavelength of 9 mm and a frequency of 6 hertz. What is its speed?
Marrrta [24]
Speed = (frequency)x(wavelength).

Frequency = 6 Hz
Wavelength = 9mm = 0.009m.

Speed = (6 Hz) x (0.009m) = 0.054 m/s   or   54 mm/sec.
5 0
3 years ago
Other questions:
  • Two students have the same velocity during a race. Colin has a mass of 80 kg while Kara has a mass of 80 kg. If Kara doubled her
    12·1 answer
  • The resistivity of a metal increases slightly with increased temperature. This can be expressed as rho=rho0[1+α(T−T0)], where T0
    5·1 answer
  • A jet makes a landing traveling due east with a speed of 120 m/s .
    10·1 answer
  • Find the acceleration of a car with the mass of 1,200 kg and a force of
    10·1 answer
  • Using a hammer to drive a nail, it is the reaction force that brings the motion of the hammer to a stop but the _______________
    13·1 answer
  • What is the average velocity of a rocket that travels 15 m in 0.25 seconds?​
    9·1 answer
  • Would water, steam, granite, or lead make the best thermal insulator? A thermal insulator is a substance that requires a lot of
    6·1 answer
  • The diagram shows an LED light bulb.
    9·1 answer
  • what is q if 28.6 g of water is heated from 22.0°c to 78.3°c? the specific heat of water is 4.184 j/g·°c.
    5·1 answer
  • Explain how Earth can be in the middle of an ice age at the same time it is experiencing global warming.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!