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
qwelly [4]
3 years ago
10

An elevator traveled 15 floors (150 ft) at a speed of 4.5 m/s. What additional information is needed to determine the velocity o

f the elevator?
Physics
1 answer:
vladimir2022 [97]3 years ago
4 0

<em>Answer:</em>

<em>Velocity is vector quantity.So it needs direction in addition to speed.</em>

<em>Explanation:</em>

<em>The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of its speed and direction of motion. </em>

You might be interested in
A van is traveling with an initial velocity of 12 m/s. The driver takes a time of 45 seconds to speed up to a velocity of 20 m/s
Rufina [12.5K]
  • Initial velocity=u=12m/s
  • Final velocity=v=20m/s
  • Time=t=45s

\\ \rm\hookrightarrow Acceleration=\dfrac{v-u}{t}

\\ \rm\hookrightarrow Acceleration=\dfrac{20-12}{45}

\\ \rm\hookrightarrow Acceleration=\dfrac{8}{45}

\\ \rm\hookrightarrow Acceleration=0.1m/s^2

Now

  • Distance=s

\\ \rm\hookrightarrow v^2-u^2=2as

\\ \rm\hookrightarrow (20)^2-12^2=2(0.1)s

\\ \rm\hookrightarrow 400-144=0.2s

\\ \rm\hookrightarrow 256=0.2s

\\ \rm\hookrightarrow s=\dfrac{256}{0.2}

\\ \rm\hookrightarrow s=1280m

4 0
3 years ago
If a particle's position is given by x=4-12t+3t^2, where t is in seconds and x is in meters, what is its velocity at t=1 second?
andreyandreev [35.5K]

Answer:

v = -6m/s

Explanation:

x=4-12t+3t^2

\frac{dx}{dt}=-12+6t

For t = 1:

\frac{dx}{dt}=-6

3 0
3 years ago
When cartographers represent the three-dimensional earth in two dimensions, what is likely to occur?
Harlamova29_29 [7]
Distortion is likely to occur
7 0
3 years ago
Read 2 more answers
a ball is thrown downward with an initial speed of 7 m/s. the ball's velocity after 3 seconds is ____ m/s (g= -9.8m/s^{2}
Karo-lina-s [1.5K]
The speed downwards is 7 + (3*9.8)
7+ 29.4 = 36.4 m/s
5 0
3 years ago
1. Endorphins
Neko [114]
endorphins - chemicals ur brain releases
endurance - ability to last a long time training
cardiovascular- using ur heart lungs blood vessels
using oxygen - aerobic
using muscle - muscular
6 0
2 years ago
Other questions:
  • A 0.5 kg ball moving at a speed of 3m/s rolls up a hill. How high does the ball roll before it stops
    6·1 answer
  • Which words describe the composition of the inner planets ? Select three options,
    8·2 answers
  • Suppose a 50.0 g block of silver (specific heat = 0.2350 J/g·°C) at 100.°C is placed in contact with a 50.0 g block of iron (spe
    9·1 answer
  • A child does 350J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 5.2 m above th
    14·1 answer
  • A whistle of frequency 592 Hz moves in a circle of radius 64.7 cm at an angular speed of 13.8 rad/s. What are (a) the lowest and
    13·1 answer
  • A. List at least 5 examples of events or factors that could cause extinction. 
    7·2 answers
  • Which practice is an unsustainable way of managing resources?<br> Please help
    12·1 answer
  • La taille d'un molécule d'eau est 0,4nm
    11·1 answer
  • 7. A runner increases his velocity from 0 m/s to 20 mis in 2 What is the runner's average acceleration?
    6·1 answer
  • 2. Think about the energy that was needed to form the wave in the pool. Where did the energy come from? ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!