Answer:
Explanation:
Given that:
Electrical field E =
square side l = 5.0 m
Area A = 5.0 * 5.0
= 25.0 m²
Angle ( θ ) between area vector and E = (90° - 60°)
= 30°
The flux can now be determined by using the expression
=
=
=
=
A child weighing 200 N is being held back in a swing by a horizontal force of 125 N, as shown in the image. What is the tension
1 answer:
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Explanation:
The centripetal force acting on a particle is given by :
Since,
Case 1.
If
Since,
So,
So, the force becomes,
F is independent of r
Case 2.
If
So,
So, the force is inversely proportional to the square of radius.
Case 3.
If T is independent of r, the force will be directly proportional to the radius of orbit.
Hence, this is the required solution.