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Here given, Mass of raindrop (m)= 3.35 X 10^-5 kg Height (h)= 100 m Mass of earth (M)= 6 X 10^24 kg Radius of earth (R)= 6371000 m Universal gravitational constant (G) = 6.67 X 10^-11 Nm^2kg^-2 [Neglecting air resistance as its value is not given] We have, Work done = Force(F) X Distance(h) = (GMm)/R^2 = [6.67 X 10^(-11) X 3.35 X 10^(-5) X 6 X 10^24] / (6371000)^2 = 3.30 X 10^-2 Joule Hence, the work done by gravity is 3.30 X 10^-2 Joules. Ans
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What type of force acts on a raindrop to reduce its speed?
Air resistance, also known as drag force, acts on a raindrop as it falls to reduce its speed. This force increases as the raindrop's speed increases, eventually balancing out the force of gravity and causing the raindrop to fall at a constant speed.
Why a raindrop falling vertically through still air reaches a constant velocity?
The air resistance will increase to the point where it counters the downward acceleration.
Why doesn't a raindrop accelerate as it approaches the ground?
A falling snowflake or raindrop does not accelerate as it approaches the ground because their mass doesn't change. The form is not affected throughout the fall so it is already approaching the ground at terminal velocity. Hope this helps.
What are the two characteristics of a free-falling object?
there arent any.
Which encounters the greater force of air resistance a falling elephant or a falling feather?
A falling elephant encounters a greater force of air resistance than a falling feather does. The force of air resistance can't be greater than the weight of the falling object. When the force of air resistance is equal to the weight of the falling object, the object stops accelerating, its falling speed becomes constant, and the force of air resistance doesn't get any bigger. So the force of air resistance against a falling feather can't be greater than the weight of the feather. But the force of air resistance against a falling elephant can be, and undoubtedly is, greater than the weight of a feather.
What type of force acts on a raindrop to reduce its speed?
Air resistance, also known as drag force, acts on a raindrop as it falls to reduce its speed. This force increases as the raindrop's speed increases, eventually balancing out the force of gravity and causing the raindrop to fall at a constant speed.
What is the direction and magnitude of the net force acting on a rain drop falling down with constant speed?
If the raindrop is falling at a constant speed, then it has reached terminal velocity. This happens when the downward force (due to gravity) is the same as the upward force due to friction. As such the net force acting on the rain drop is 0.
Why a raindrop falling vertically through still air reaches a constant velocity?
The air resistance will increase to the point where it counters the downward acceleration.
Why doesn't a raindrop accelerate as it approaches the ground?
A falling snowflake or raindrop does not accelerate as it approaches the ground because their mass doesn't change. The form is not affected throughout the fall so it is already approaching the ground at terminal velocity. Hope this helps.
When air resistance balances the weight of an object that is falling the velocity remains blank?
Constant
What are the two characteristics of a free-falling object?
there arent any.
What would you call it when air resistance the force of gravity and a falling object stops accelerating?
When a falling object stops accelerating but is falling at a constant velocity, it is called terminal velocity.
If you were a raindrop falling from the sky what would you do?
i would aim for some one
What did the witty raindrop exclaim to others?
"I'm just falling for you all!"
Which encounters the greater force of air resistance a falling elephant or a falling feather?
A falling elephant encounters a greater force of air resistance than a falling feather does. The force of air resistance can't be greater than the weight of the falling object. When the force of air resistance is equal to the weight of the falling object, the object stops accelerating, its falling speed becomes constant, and the force of air resistance doesn't get any bigger. So the force of air resistance against a falling feather can't be greater than the weight of the feather. But the force of air resistance against a falling elephant can be, and undoubtedly is, greater than the weight of a feather.
What happens when there is no air resistance while Falling?
If there is no air resistance while falling, the object will accelerate at a constant rate due to gravity. This means it will continue to gain speed as it falls without any force to slow it down.
Can returning radar energy show the direction and speed of a falling raindrop?
yes
