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
Dominik [7]
3 years ago
9

A car is travelling to the right with a speed of 40 m/s when the driver slams on the brakes. The car skids for 4 s with constant

acceleration before it comes to a stop. What was the rate of the car's acceleration as it skidded to a stop?
Physics
1 answer:
vazorg [7]3 years ago
3 0

Answer:

10m/s^2

Explanation:

Given data

velocity= 40m/s

time= 4 seconds

Acceleration a =????

We know that

a= velocity/time

substitute

a=40/4

a= 10m/s^2

Hence the acceleration will be 10m/s^2

You might be interested in
Confirm if this is correct or not. If it isn't correct, please correct it.
kow [346]

Answer:

d = 421.83 m

Explanation:

It is given that,

Height, h = 396.9 m

Horizontal speed, v = 46.87 m/s

We need to find the distance traveled by the ball horizontally. Let t is the time taken by the ball. Using second equation of motion for vertical direction. So,

396.9=0\times t+\dfrac{1}{2}\times 9.8 t^2\\\\t=9\ s

Now d is the distance covered by the cannonball. So,

d=vt\\\\d=46.87\times 9\\\\d=421.83\ m

Hence, this is the required solution.

3 0
3 years ago
Give an example in which a small force exerts a large torque. give another example in which a large force exerts a small torque.
goldenfox [79]
<span>Since the torque involves the product of force times lever arm, a small force can exert a greater torque than a larger force if the small force has a large enough lever arm.

With a large force exerts a small torque is a gate, hinged in its vertical line (axis). When pushed from a point near to the hinge, a very large amount is needed to open the gate.
</span><span>
</span>
3 0
3 years ago
Read 2 more answers
Which of the following means that an<br> image is real?
Licemer1 [7]

Answer:_

Explanation:

7 0
3 years ago
What is one result of warming up your body’s muscles before exercising?
Anna11 [10]
Slightly raising your body temperature while increase oxygen and blood circulation throughout your body
7 0
3 years ago
Adding heat to a liquid causes which of the following physical changes?
Nadya [2.5K]
Decreases density because gases have less density than liquids
4 0
4 years ago
Read 2 more answers
Other questions:
  • Can anyone give me the description of the element mercury is positioned on the periodic table of elements and a list of other el
    15·1 answer
  • Whats the difference between watts, amps, and volts?
    9·1 answer
  • Local radio station WMMM-FM (Triple M), bills itself as the "Sound of Madison". Its radio waves are broadcast at a frequency of
    9·1 answer
  • The density of atmosphere on a certain planet is found to decrease as altitude increases what is the type of relationship betwee
    13·1 answer
  • Which type of electromagnetic radiation is responsible for the colors of<br> objects?
    7·1 answer
  • When a wave propagates through a medium the molecules of the medium?
    15·1 answer
  • 1200 kg car is being driven down a road. If it has 101 kJ of kinetic energy, what is its speed?
    11·1 answer
  • The electric motor of a model train accelerates the train from rest to 0.685 m/s in 21.5 ms. The total mass of the train is 875
    8·1 answer
  • Class 11th physics the charge of positive 7 microcoulomb is placed at the centre of two concentric sphere with radius 2cm and 4c
    6·1 answer
  • A track consists spring launcher on one end. A spring which is compressed 0.5 m has a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!