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Motion Under Gravity: Free Fall Video Lecture | Civil Engineering Optional Notes for UPSC

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FAQs on Motion Under Gravity: Free Fall Video Lecture - Civil Engineering Optional Notes for UPSC

1. What is free fall in the context of motion under gravity?
Ans. Free fall refers to the motion of an object falling solely under the influence of gravity, without any other forces acting on it.
2. What is the acceleration due to gravity on Earth?
Ans. The acceleration due to gravity on Earth is approximately 9.81 m/s^2.
3. How does air resistance affect an object in free fall?
Ans. Air resistance can slow down the acceleration of an object in free fall, causing it to reach the ground at a slower speed than if it were in a vacuum.
4. What is the formula to calculate the final velocity of an object in free fall?
Ans. The formula to calculate the final velocity of an object in free fall is v = u + gt, where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity, and t is the time taken.
5. How does the mass of an object affect its acceleration in free fall?
Ans. In free fall, the mass of an object does not affect its acceleration. All objects near the surface of the Earth experience the same acceleration due to gravity, regardless of their mass.
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