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
Citrus2011 [14]
3 years ago
11

What is the instantaneous speed at 5 seconds? (remember s=d/t)

Physics
2 answers:
Sliva [168]3 years ago
5 0

Answer:

5 seconds is a poor time to ask about, because the speed abruptly changes at exactly 5 seconds.

Up until that time, the speed has been 1 m/s. And then, at exactly 5 seconds, it becomes zero.

_________

It's also a poor question because speed is calculated from the distance covered, but the graph shows displacement, not distance. You can't really tell the distance covered from a displacement graph. For example, if an object happens to be moving in a circle around the place where it started, then the total distance covered keeps increasing, but its displacement is constant.

Read more on Brainly.com - brainly.com/question/6618489#readmore

Explanation:

TEA [102]3 years ago
4 0
5 seconds is a poor time to ask about, because the speed abruptly changes at exactly 5 seconds.

Up until that time, the speed has been 1 m/s. And then, at exactly 5 seconds, it becomes zero.
_________

It's also a poor question because speed is calculated from the distance covered, but the graph shows displacement, not distance. You can't really tell the distance covered from a displacement graph. For example, if an object happens to be moving in a circle around the place where it started, then the total distance covered keeps increasing, but its displacement is constant.
You might be interested in
Can u help me. thank you​
katrin2010 [14]
I can give you a search engine that could help you with all ir hw its called socratic it uses everything on the internet to search for answers it’s literally a search engine
6 0
2 years ago
Read 2 more answers
If the coefficient of kinetic friction between tires and dry pavement is 0.84, what is the shortest distance in which you can st
liberstina [14]

Answer:

The shortest distance in which you can stop the automobile by locking the brakes is 53.64 m

Explanation:

Given;

coefficient of kinetic friction, μ = 0.84

speed of the automobile, u = 29.0 m/s

To determine the  the shortest distance in which you can stop an automobile by locking the brakes, we apply the following equation;

v² = u² + 2ax

where;

v is the final velocity

u is the initial velocity

a is the acceleration

x is the shortest distance

First we determine a;

From Newton's second law of motion

∑F = ma

F is the kinetic friction that opposes the motion of the car

-Fk = ma

but, -Fk = -μN

-μN = ma

-μmg = ma

-μg = a

- 0.8 x 9.8 = a

-7.84 m/s² = a

Now, substitute in the value of a in the equation above

v² = u² + 2ax

when the automobile stops, the final velocity, v = 0

0 = 29² + 2(-7.84)x

0 = 841 - 15.68x

15.68x = 841

x = 841 / 15.68

x = 53.64 m

Thus, the shortest distance in which you can stop the automobile by locking the brakes is 53.64 m

4 0
2 years ago
What can affect gravity <br><br> Helpppppp!!!
Anvisha [2.4K]

gravity increases with height. gravity is significantly less on high mountains or tall buildings and increases as we lose height (which is why falling objects speed up) gravity is caused by the Earth spinning. gravity affects things while they are falling but stops when they reach the ground
7 0
3 years ago
Which of the following explains how electrical charges flow? From areas of high-potential to areas of low-potential From areas o
skad [1K]
From areas of high potential to low potential.  That is, high voltage to low voltage.
8 0
3 years ago
Read 2 more answers
710 mm= ______________cm<br>​
love history [14]

Answer:

71 cm

Explanation:

Every 100 mm is equal to 10 cm. Hope this helps!

4 0
3 years ago
Read 2 more answers
Other questions:
  • The potential-energy function u(x) is zero in the interval 0≤x≤l and has the constant value u0 everywhere outside this interval.
    6·1 answer
  • Is a root made up of three layers?
    9·1 answer
  • An 85-kg refrigerator is located on the 70th floor of a skyscraper (4km above the ground ) what is the potential energy
    10·1 answer
  • Two automobiles are equipped with the same singlefrequency horn. When one is at rest and the other is moving toward the first at
    13·1 answer
  • A man standing on a bus remains still when the bus is at rest. When the bus moves forward and then
    5·1 answer
  • It is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g / metric ton. A metric ton i
    11·1 answer
  • An aluminum bar 600mm long, with diameter 40mm long has a hole drilled in the center of the bar.The hole is 30mm in diameter and
    5·1 answer
  • A common, though incorrect, statement is, "The Moon orbits the Earth." That creates an image of the Moon?s orbit that looks like
    7·1 answer
  • List each FITT principle and describe what they represent.<br><br> will mark brainliest!!!
    5·2 answers
  • If he leaves the ramp with a speed of 30.5 m/s and has a speed of 28.7 m/s at the top of his trajectory, determine his maximum h
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!