A decrease in velocity is referred to as deceleration. If car is moving at 30 m/s and stop in 50 m .The value of deceleration is 11.56 ms−2.
<h3>How to calculate deceleration ?</h3>
While acceleration is motion in which an object's speed varies every second, deceleration is motion that causes an object to slow down.
We are aware that acceleration refers to an object's rate of increase in speed, and deceleration refers to an object's rate of decrease in speed. For instance, when we apply the brakes while driving, we benefit from the vehicle's ability to decelerate and slow down.
The Deceleration Formula is the final velocity minus the initial velocity, with a negative sign in the result because the velocity is decreasing, if starting velocity, final velocity, and time taken are given.
velocity of car = 30 m/s
car need to stop in 50m
Deceleration a = v^2 – u^2 / 2s
= 0^2 - 50^2 / 2*30
= 11.56
Deceleration of the care = 11.56 ms−2
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Answer:
Final Temperature is 310K
Explanation:
Given that:
Mass of O₂ gas = 2 kg
Pressure (P₁) = 100 kpa
Temperature (T₁) = 310K
We also have, ΔQ = ΔU + ΔW where ΔQ is the heat transferred into/out of the system, ΔW is the work done and ΔU is the change in internal energy of the system.
As soon as the wall is removed, the process called expansion process allows the evacuated chamber to be filled. Work done ΔW = PdV = 0, this is because P the external pressure against which the gas is expanding is zero, therefore the work done is zero.
ΔU which is highly dependent on the temperature is zero since there is no heat transferred in or out of the container due to it being insulated. This therefore means that the initial temperature is the same as the final temperature when the container if filled completely.
T₁ = Final temperature = 310 K
The final Temperature is therefore 310K
Answer:
Electric potential energy at the negative terminal:
Explanation:
When a particle with charge travels across a potential difference , then its change in electric potential energy is
In this problem, we know that:
The particle is an electron, so its charge is
We also know that the positive terminal is at potential
While the negative terminal is at potential
Therefore, the potential difference (final minus initial) is
So, the change in potential energy of the electron is
This means that the electron when it is at the negative terminal has of energy more than when it is at the positive terminal.
Since the potential at the positive terminal is 0, this means that the electric potential energy of the electron at the negative end is