if a ball is accelerated downward at 9.8m/s, by how many meters per second does the object's velocity change every second?
1 answer:
The velocity will change (increase) by 9.8 m/s every second.
Why?
Since the ball is accelerated downward at we can see that the ball is on "free fall". It means that the wall was dropped with no initial speed.
Now, if we want to know by how many meters per second does the object's velocity change every second, we need to understand the units of the acceleration. Let's write the equation of acceleration for better understanding.
So, from the equation we can see that the acceleration is changing the velocity every second.
Hence, if an object has the given acceleration (acceleration due to gravity, 9.8m/s2), it means that its speed will change (increase) by 9.8m/s every second.
Have a nice day!
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Complete Question
The complete question is shown on the first uploaded image
Answer:
a it is always zero
b 0
c
Explanation:ss
Here the net charge is on the outer surface of the conductor thus this means that the net charge inside the conductor is zero
Generally the charge density of a conductor is dependent on the charge per unit area which implies that the charge density is dependent on the net charge so this means that the charge density inside the conductor is zero
Generally the direction of electric field this from the positive charge to the negative charge so from the question we can deduce that the negative charge is located on the surface of the conductor
So We can mathematically define the charge density on the surface of the electric field as
∮
Where E is the electric field
change in unit area
is the negative charge
is the permittivity of free space
So
Where is the charge density
