As a raindrop falls from a cloud to the surface of Earth,
A.its speed increases due to gravity.
B.its speed increases due to air resistance.
C.it moves at a constant speed.
D.it moves at a constant velocity.
I think its B... Am i right?
Disagree, air resistance would reduce speed.
No, you are not correct. The correct answer is A. As a raindrop falls from a cloud to the surface of the Earth, its speed increases due to gravity.
To understand why, we can think about the forces acting on the raindrop. Gravity is the force that pulls the raindrop towards the Earth. Initially, as the raindrop falls from the cloud, gravity is the only force acting on it (ignoring air resistance for now). According to Newton's second law of motion, when only one force is acting on an object, the object will accelerate in the direction of that force. In this case, the acceleration is due to the force of gravity, and as the raindrop falls, its speed increases.
While air resistance does eventually come into play as the raindrop falls through the atmosphere, it is initially negligible compared to the force of gravity. Therefore, air resistance does not significantly affect the raindrop's speed as it falls from the cloud to the surface of the Earth.