Why is the horizontal component of a velocity remains constant in horizontal and inclined projection
1 answer:
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The x position will be "12 m" and the y position will be "-4.9 m".
According to the question,
Along x direction, Initial velocity:
- 12 m/s
Along x direction, Acceleration is:
- 0
Along y direction, Acceleration is:
- -10 m/s²
Time,
- t = 1 second
→ The X coordinate will be:
=
=
=
→ The Y coordinate will be:
=
=
=
=
=
Thus the above answer is correct.
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Answer:
Option E, double the charge to 2, is the right answer.
Explanation:
Given the electric field at point = P
The point charge = Q
Distance =R
Magnitude = E
Due to a certain charge, the magnitude of the electric field at a point is defined as:
Here, we can see that E is proportionate to Q and 1/r^2
Hence, double the charge to 2 and at the same time reduce the distance to /2 will half the E
Therefore, doubling the charge will doubling E
So the answer is (e) is correct.