How does a centripetal force cause circular motion? It acts at a right angle to the object's motion and causes the object to con
2 answers:
Answer:
It acts at a right angle to the object's motion and causes the object to constantly change direction
Explanation:
When an object moves in a circular path, the force acting on it is called the centripetal force. The magnitude of this force is given by :
Here,
m is the mass of object
v is the velocity of object
r is the radius of circular path
When an object moves in a circular path, its direction keeps on changing while its speed remains the same. The centripetal force acts at an angle of 90 degrees to the motion of an object.
So, the correct option is (a). "It acts at a right angle to the object's motion and causes the object to constantly change direction".
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Answer:
Option D.) 0.09 I₀
Explanation:
The intensity, I, of a polarized light after passing through a polarizing filter is given by
Original Intensity
Angle between the direction of polarization and the axis of filter
After passing through the first polarizer, the initial intensity, is halved, i.e
After passing through the second polarizer, the angle of polarization, θ = 30⁰
After passing through the third polarizer, the angle of polarization, θ = 90⁰-30⁰ = 60⁰