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
ioda
4 years ago
5

A body moves with constant acceleration. It's velocity increases from 6 m/s to 16 m/s in 2 seconds. The distance moved by the bo

dy in these 2 seconds is
Physics
1 answer:
Pepsi [2]4 years ago
4 0

Answer:

The distance moved by the body in these 2 seconds is 22 meters.

Explanation:

Given that,

Initial velocity of a body, u = 6 m/s

Final velocity of the body, v = 16 m/s

Time, t = 2 s

Let d is the distance moved by the body in these 2 seconds is. Using third equation of motion to find it such that,

v^2-u^2=2ad\\\\(16)^2-(6)^2=2\times (\dfrac{16-6}{2})\times d\\\\d = 22\ m

So, the distance moved by the body in these 2 seconds is 22 meters. Hence, this is the required solution.

You might be interested in
A railroad car of mass 3.45 ✕ 104 kg moving at 2.60 m/s collides and couples with two coupled railroad cars, each of the same ma
Alex

Answer:

a) 1.67 m/s

b) 23kJ

Explanation:

We need to apply the linear momentum conservation formula, that states:

m1*v_{o1}+m2*v_{o2}=m1*v_{f1}+m2*v_{f2}

in this case:

3.45*10^4kg*2.60m/s+2*3.45*10^4kg*1.20m/s=3*m1*v_{f}\\v_f=1.67m/s

the initital kinetic energy is:

K_i=\frac{1}{2}*3.45*10^4kg*(2.60m/s)^2+2(\frac{1}{2}*3.45*10^4kg*(1.20m/s)^2\\K_i=167kJ

and the final:

K_f=3*\frac{1}{2}*3.45*10^4kg*(1.67m/s)^2\\K_f=144kJ

The energy lost is given by:

E_l=|K_f-K_i|\\E_l=23kJ

8 0
3 years ago
Who studies this branch of physics? What types of careers are there in this branch of physics? What particular subjects should s
kolezko [41]

The answers to all three questions depend on WHICH branch

of Physics you're talking about . . . a piece of information you've

neglected to specify.

8 0
4 years ago
What is the wavelength of an electromagnetic wave
VMariaS [17]

Answer:

Explanation:

Electromagnetic waves are categorized according to their frequency f or, equivalently, according to their wavelength λ = c/f. Visible light has a wavelength range from ~400 nm to ~700 nm.

The electromagnetic spectrum (EMS) is the general name given to the known range of electromagnetic radiation. Wavelengths increase from approximately 10-18 m to 100 km, and this corresponds to frequencies decreasing from 3 × 1026 Hz to 3 ×103 Hz.

3 0
3 years ago
Describe 2 applications of surface tension
Andrews [41]
Application of surface tension:
1) A needle placed on water can be made to float due to the surface tension of water.
2) Mosquito eggs can float on water because of its surface tension.
3) Toothpaste contains soap, which reduce the surface tension and helps it spread freely in the mouth.
8 0
3 years ago
In a physics lab, a 60-kg student runs up a 2.0-meter tall flight of stairs in 1.5 seconds. The work done to get to the top is 1
tester [92]
<span>The student's power rating is approximately 800W.
</span>
Power is the rate of doing work. Its SI unit is Watt. 1 W = 1J/sec

Given: <span>The work done to get to the top is 1200 Joules
</span>
Time = 1.5 seconds.

Power = \frac{work done}{time} &#10;=  \frac{1200J}{1.5 sec} &#10;= 800J/sec &#10;= 800W
3 0
4 years ago
Other questions:
  • A long wire carrying I=1.3A of constant current oriented East-to-West (and the current is running eastwards) is placed distance
    11·1 answer
  • A transformer connected to a 120--V ac line is to supply 12.0V (rms) to a portable electronic device. The load resistance in the
    15·1 answer
  • Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el
    7·1 answer
  • When an acid reacts with water, the hydroxide ion is formed.<br><br> True<br><br> False
    14·1 answer
  • If the density of the heavy liquid is 10 g/cm^3
    13·1 answer
  • What is the mean height for the grass used as a control?
    15·1 answer
  • Experiment to show acceleration due to gravity​
    11·1 answer
  • A person drives for 1.00 h at 10.0 km/h and 2.00 h at 20.0 km/h. What is their average speed, in SI units?
    11·1 answer
  • Written Works Choose the letter of the correct answer. Write it on the space provided before the number. 1. Which of the followi
    9·1 answer
  • A 4.0-kg object has 72 J of kinetic energy.<br> Determine its speed.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!