Answer: B
Explanation: The motion sensor will measure the speed (velocity) of the car. Since the mass of the car has been measured, we can use formulas to calculate the average force.
Average net force = mass × acceleration
The mass of the toy car is measured first and noted
To calculate the velocity,
the car starts from rest since the velocity is associated with the distance and time after 5s.
Acceleration = velocity/time
With that the acceleration can be found.
acceleration is defined as change in velocity per unit time.
Then,
Force = mass × acceleration
Option B is the best answer
An example of an inverse relationship is the one between pressure and volume of an ideal gas
Explanation:
Boyle's law states that:
<em>"For a gas kept at a constant temperature, the pressure of the gas is inversely proportional to its volume"
</em>
Mathematically,
where p is the pressure of the gas and V its volume.
The relationship can be written as
Therefore it is an example of inverse relationship, because:
- As the volume increases, the pressure decreases
- As the volume decreases, the pressure increases
Learn more about ideal gases:
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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
1 and 4 are tire.
2 and 3 are not.
