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
Inessa [10]
3 years ago
14

A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. At this time, the driver suddenly realizes that she m

ust stop the car. If it takes 0.200 s for the driver to apply the brakes, what must be the magnitude of the constant acceleration of the car after the brakes are applied so that the car will come to rest at the stop sign?
Physics
1 answer:
victus00 [196]3 years ago
6 0

Answer:

The acceleration of the car will be a=9600m/sec^

Explanation:

We have given that distance from stop sign s = 200 m

Time t = 0.2 sec

We have to find the constant acceleration

Now from second equation of motion s=ut+\frac{1}{2}at^2

200=40\times 0.2+\frac{1}{2}\times a\times 0.2^2

a=9600m/sec^

So the acceleration of the car will be a=9600m/sec^

You might be interested in
if a bowling ball and a golf ball or move at the same velocity, which one would have more momentum? Why?
Vlada [557]

I would Say the Bowling Ball, Would have more momentum, Because of Newtons 3rd Law.

I hope I helped

- Dante

4 0
3 years ago
Read 2 more answers
HELLO I NEED YOU HELP WITH THIS SCIENCE QUESTION NO LINKS!!!
sweet [91]

the study of how matter and energy interact

the study of the natural world around us

the study of human bodies and how they move

8 0
2 years ago
What continent is located at 40 degrees north and 100 degrees west?
Rina8888 [55]
The continent located 40n and 100w is North America
5 0
3 years ago
Read 2 more answers
In which one of the following situations is zero net work done? A) A ball rolls down an inclined plane. B) A physics student str
lidiya [134]

Answer:

Option D

Explanation:

The work done can be given by the mechanical energy used to do work, i.e., Kinetic energy and potential energy provided to do the work.

In all the cases, except option D, the energy provided to do the useful work is not zero and hence work done is not zero.  

In option D, the box is being pulled with constant velocity, making the acceleration zero and thus Kinetic energy of the system is zero. Hence work done in this case is zero.

6 0
3 years ago
Read 2 more answers
Which events may occur when ocean salinity increases? Check all that apply.
Pavlova-9 [17]
The answer is number two, number four, and number one
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the linkin park song that has rattling metal noise in it?
    15·1 answer
  • What is the intensity level of a sound with an intensity of 0.000127 W/m2?
    13·1 answer
  • I need to calculate a coefficient of linear expansion given the following
    13·1 answer
  • Which types of electromagnetic waves have frequencies that are higher than those of ultraviolet light but lower than those of ga
    14·2 answers
  • The first international standard of length was a metal bar kept at the International Bureau of Weights and Measures. One meter o
    10·1 answer
  • A home run just clears a fence 105 m from home plate. The fence is 4.00 m higher than the height at which the batter struck the
    8·1 answer
  • Which is a device made from a coil of wire that carries a current and produces a magnetic field?
    8·2 answers
  • A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will
    12·1 answer
  • Two football players run down the field. One has a mass of 70 kg and the other has a mass of 100 kg. Which player will be harder
    13·1 answer
  • A body staring for rest acquries a velocity of 10ms in 5 seconds calculate (a) the accleration(b) the distance covered by the bo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!