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
fgiga [73]
3 years ago
14

Towards the end of a 400m race, Faisal and Edward are leading and are both running at 6m/s. While Faisal is 72m from the finish

line Edward is 100m from the finish line. Realising this and to beat Faisal, Edward decides to accelerate uniformly at 0.2 m/s2 until the end of the race while Faisal keeps on the same constant speed. Does Edward succeed in beating Faisal
Physics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

NO

Explanation:

To determine this, we have to firstly determine the time it took Faisal to complete the race with 72 meters left and then the speed Edward used for the final 100 meters (with both distance occurring at the same point in time).

To determine the time it took Faisal from that onward, we use the formula

Speed = distance/time

Since Faisal maintained his speed at the end of the race, the speed will be 6 m/s while distance at the end to be covered his 72 m. Thus

6 = 72/time

time = 72/6

time = 12 seconds; It will take Faisal 12 seconds to complete the race from that point.

For Edward, he accelerated uniformly (for 0.2 m/s²) after running at a constant speed of 6 m/s. Thus, the time it would have taken him to complete (at a speed of 6 m/s) the final 100 m would be

speed = distance/time

6 = 100/time

time = 100/6

time = 16.67 s.

However, he accelerated uniformly at 0.2m/s², hence to get the speed, the formula; speed = acceleration × time will be used

speed = 0.2 × 16.67

speed = 3.334 m/s

To determine the time it took Edward from 100 meters away,

speed = distance/time

3.334 = 100/time

time = 100/3.334

time = 29.94 seconds

<u>It would have taken Edward 29.94 seconds to complete the race, hence he would not have succeeded in defeating Faisal</u>

You might be interested in
Please Please Please Can Help Me On This Question!!!!! I Give Thanks!!!! Please Do 1-4!!!! Please Please Help Nobody Is Helping
DENIUS [597]
Not sure if this is what you’re looking for. Let me know if I can clarify anything.

6 0
3 years ago
State the law of conversation of momentum​
Sliva [168]
The total momentum before a collision is equal to the total momentum after the collision if no external forces act on the system.
Hope this helps
6 0
3 years ago
Which of the following can easily be studied objectively? history meteorology sociology theology
Vilka [71]
<h2>Answer: meteorology </h2>

Explanation:

From the given options , meteorology is the only one that can be studied objectively, since it is an interdisciplinary science that relies on basic sciences such as physics and mathematics and applied sciences to the study of the atmosphere, the weather, the phenomena produced and the physical laws that govern it. In addition, meteorology uses objective techniques to study and predict the various phenomena that occur in the atmosphere.

Unlike history, sociology and theology, in which there is a possibility of the existence of some data are subjective and not true or only based on opinions <u>without scientific evidence</u>.

8 0
3 years ago
Help me with these simple nuclear energy reactions:
olasank [31]
I know what it is but its hard to see
8 0
4 years ago
An airplane is flying at a velocity of 122.4 m/s. It is getting ready to land so it slows down by accelerating at a rate of -2.8
PIT_PIT [208]

Answer:

115.12

Explanation:

-2.8=v-122.4/2.6

v=115.12

8 0
3 years ago
Other questions:
  • . Boxes are sitting on a conveyor belt as the conveyor is turned on, moving the boxes toward the right. The belt reaches full sp
    14·1 answer
  • What is the transfer of energy in the form of rays or waves.?
    13·2 answers
  • Can someone explain and slove question 4
    6·1 answer
  • Which option correctly defines the scientific method?
    15·1 answer
  • File catpyxnece definition?
    8·1 answer
  • 9/10 in percents. Examples please, at least 2.
    6·2 answers
  • Another model rocket is accelerating at a rate of 3 m/s2 with a force of 1 N. What is the mass of the rocket?​
    9·1 answer
  • Which of these should you always do at the end of a calculation
    9·1 answer
  • A car starts from rest and reaches a velocity of 30 m/s in 10 s. If the car
    5·1 answer
  • Part F What are some potential applications of a material that make things invisible?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!