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
ladessa [460]
3 years ago
8

A person began running due east and covered 15 km in 2.0 hr. What is the average velocity of the person?

Physics
2 answers:
g100num [7]3 years ago
6 0
Velocity = distance / time

v = (15*1000)m / (2*60*60)s

v=2.08 m / s
kotegsom [21]3 years ago
6 0

ave vel = total distance/total time in a specified direction

15km/2hr due east=7.5k/h d east

You might be interested in
Calculate the distance traveled by a projectile as a function of launch angle. Compare the distances for two projectiles launche
DaniilM [7]

Answer:

R = x_{max} = \frac{v^2\sin(2\theta)}{g}\\\frac{R_1}{R_2} = \frac{\sin(2\theta_1}{\sin(2\theta_2}

Explanation:

Using kinematics equations:

\Delta x = v_{0x}t\\\Delta y = -\frac{1}{2}gt^2+v_{0y}t

Use \Delta y = 0 due to condition of distance traveled.

Solving second equation for time, there are two solutions. t=0 and

t=\frac{2v_{0y}}{g}

Use the expression in the first equation to have

R = \frac{2v^2 \cos\theta\sin\theta}{g}

Using trigonometric identities, you have the answer of the distance.

By doing the ratio for two different angles, you have the second answer. Due to sine function properties, the distances can be the same to complementary angles. Example, for 20° and 70°, the distance is the same.

5 0
3 years ago
What is the independent, and dependent variable? what should songs bobs conclusion be?
Fudgin [204]
The dependent variable is the slime on Gary's shell, because it's depending on other factors (independent factors).
6 0
3 years ago
A ______________ is very general in nature, while a ________________ specifies what we want to study more specifically, suggesti
vova2212 [387]

Answer:

research topic and research question (hypothesis)

Explanation:

6 0
3 years ago
Why would an atomic nucleus give off a particle?
zmey [24]
To make the nucleus more stable 

5 0
3 years ago
Read 2 more answers
Some parents build their children’s lives around sports and place a high premium on the successes their children achieve in spor
riadik2000 [5.3K]

Answer:

I think they cross the line when they force sports into their child's life, and take away their choice of what they want to do so they essentially waste their childhood preparing for something that may never happen or they just don't get the opportunity to explore their artistic abilities.

Explanation:

3 0
3 years ago
Other questions:
  • What is the value of g
    7·1 answer
  • A wagon has a mass of 100 grams and an
    12·1 answer
  • Coherent light of frequency 6.32 x 1014 Hz passes through two thin slits and falls on a screen 85.0 cm away. You observe that th
    12·1 answer
  • 7)
    12·1 answer
  • You compress a spring by a distance of 0.2 m. The spring has a spring constant of 37 N/m. When you release the spring, it snaps
    8·2 answers
  • Summarize why people were unsuccessful over 1,000 years ago when they tried to transform lead into gold. What process would they
    9·1 answer
  • Imagine you re in an entrepreneur and have been provided a loan by a bank to set up a small electro plating unit. What would you
    11·1 answer
  • Select the correct answer.
    15·1 answer
  • Heidi (39 kg) is walking her tiny chihuahua, Chaxi (5.60 kg), on the sidewalk. To encourage Chaxi along, Heidi pulls forward wit
    8·1 answer
  • Describa con sus palabras que fue lo que descubrio galileo en su legendario experimento en la torre inclinada de pisa
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!