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
larisa [96]
11 months ago
14

you are driving along a country road when you suddenly notice a log in the road ahead of you and immediately apply your brakes.

you travel a distance of s(t)
Physics
1 answer:
DiKsa [7]11 months ago
7 0

a. The car will not hit the tractor.

b. The car would travel a distance of 52.07 m before stopping

c. At the moment when the car stopped, the tractor is 11.5 m in front of the car.

Linear motion

From the question, we are to determine of you will hit the tractor before you stop

First, we will determine the time it will take the car to stop

From the given information,

Initial velocity, u = 27.0 m/s

a = -7 m/s² (Negative sign indicates deceleration)

v = 0 m/s (Since the car will come to stop)

From one of the equations of linear motion,

v = u + at

Where v is the final velocity

u is the initial velocity

a is the acceleration

and t is the time taken

Putting the parameters into the equation, we get

0 = 27 + (-7)t

7t = 27

t = 27/7

t = 3.857 secs

This is the time it will take the car to stop

Now, we will determine the distance the car would travel after applying the brakes

Using the formula

S = (u + v) / t

Where S is the distance traveled

S = [(27 + 0) / 2] * 3.857

S = 13.5 * 3.857

S = 52.0695 m

S ≅ 52.07 m

This means the car would travel 52.07 m after applying the brakes

Now, we will determine the distance the tractor would have traveled when the car came to a stop

Speed of the tractor = 10.0 m/s

Time taken for the car to stop = 3.857 secs

Using the formula,

Distance = Speed × Time

Distance = 10.0 × 3.857

Distance = 38.57 m

Now, we will determine the distance between the car and the tractor when the car finally stopped

Distance between the car and the tractor = Distance ahead + Distance traveled by the tractor after the car stopped - Distance traveled by car after applying the brakes

Distance between the car and the tractor = 25 m + 38.57 m - 52.07 m

Distance between the car and the tractor = 11.5 m

Therefore, the distance the tractor was ahead of the car + the distance the tractor traveled after the car stopped is more than the distance the car traveled after applying the brakes (25 m + 38.57 m > 52.07), the car will not hit the tractor.

To know more about distance, refer: brainly.com/question/10903482

#SPJ4

<u><em>[NOTE: THIS IS AN INCOMPLETE QUESTION. THE COMPLETE QUESTION IS: You are driving your car along a country road at a speed of 27.0 m/s. as you come over the crest of a hill, you notice a farm tractor 25.0 m ahead of you on the road, moving in the same direction as you at a speed of 10.0 m/s. you immediately slam on your brakes and slow down with a constant acceleration of magnitude 7.00 m/s2 .</em></u>

<u><em>a.will you hit the tractor before you stop?</em></u>

<u><em>b.how far will you travel before you stop or collide with the tractor?</em></u>

<u><em>c.if you stop, how far is the tractor in front of you when you finally stop?]</em></u>

You might be interested in
What does it mean to say the mass is conserved during a physical change ?
Olin [163]
Mater doesn't just appear or disappeared. Chemical elements are still there just the connections and how it combines changes.

So what goes into your chemical eqation must still exist after the change.
4 0
3 years ago
Read 2 more answers
What are you and the Australian Institute of Marine Biology trying to find out and 4. Why might it be important to find this inf
TEA [102]

Answer:

Established in 1972 by the McMahon Government, the institute's primary function is research for sustainable use and protection of the marine environment. The Institute investigates topics from broad-scale ecology to microbiology.

6 0
2 years ago
What is the most commonly used reference point
snow_tiger [21]

Answer:

El punto de referencia más usado es el NORTE. Los puntos de referencia sirven para orientarnos, de esta manera podemos saber nuestra ubicación y luego desplazarnos. En este caso tenemos que el punto cardinal NORTE es el más usado, se tiene como referencia universal para lograr ubicarnos.

Explanation:

gracias

7 0
2 years ago
Read 2 more answers
3.A bridge usually has expansion joints. They allow the bridge to become slightly longer when it
Dominik [7]

Answer:

a) When the sides of the joint are close together, the particles have more kinetic energy than they do when sides are farther apart.

Explanation:

5 0
3 years ago
Parents have a major role in observing how young children grow at home. Create and discuss simple developmental monitoring tips
Rudik [331]

Answer:

by observation of their children

4 0
2 years ago
Other questions:
  • A negatively charged balloon has 4 μC of charge. How many excess electrons are on this bal- loon? The elemental charge is 1.6 ×
    6·1 answer
  • The unit for IMA is _____. newtons joules meters IMA is unitless
    10·2 answers
  • What is a natural form of pollution?
    12·1 answer
  • The drag coefficient of a car at the design conditions of 1 atm, 25°c, and 90 km/h is to be determined experimentally in a large
    15·1 answer
  • Two equal forces are applied to a door. The first force is applied at the midpoint of the door; the second force is applied at t
    15·1 answer
  • Although sunlight is unpolarized, the light that reflects from smooth surfaces may be partially polarized in the direction paral
    6·1 answer
  • Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons. The resulting charge b
    11·1 answer
  • A rope holding a brick is hanging from the ceiling of an elevator at rest. If the elevator accelerates
    15·1 answer
  • What is the weight of an object with a force of 35 pounds ?
    6·1 answer
  • You want to determine whether the mass of an object attached to a parachute affects the time it takes to fall to the ground. In
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!