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When an object falls under gravity, the object experiences:
an acceleration
a deceleration
a force only when it hits the surface of the earth
no external force
an acceleration
When an object falls freely under the influence of gravity, it experiences a constant acceleration directed towards the center of the earth. This acceleration is known as acceleration due to gravity, denoted by g, which is approximately 9.8m/s2 near the Earth's surface.
When an object falls freely under the influence of gravity, it experiences a constant acceleration directed towards the center of the earth. This acceleration is known as acceleration due to gravity, denoted by g, which is approximately 9.8m/s2 near the Earth's surface.
Dropping a ball from a balcony: as it falls, it speeds up continuously because gravity pulls it downward, making it accelerate until it hits the ground.
G-Force: Gravity Gives acceleration G.
v=u+gt тАФ First equation of motion under gravity
s=ut+21тАЛgt2 тАФ Second equation of motion under gravity
v2=u2+2gs тАФ Third equation of motion under gravity
According to Newton's Second Law of Motion (F=mтЛЕa), when a net external gravitational force (FgтАЛ=mтЛЕg) acts on an object of mass m, it produces an acceleration. Since air resistance is neglected in free fall, the acceleration experienced by the body is independent of its mass and equals g.
Acceleration due to gravity near the Earth's surface is approximately 9.8m/s2.
Free fall refers to motion under the sole influence of gravity.
The acceleration of a freely falling body is independent of its mass.
In a vacuum, all bodies fall with the exact same acceleration regardless of their weight or shape.
Helps understand gravitational force and classical mechanics principles.
Real-world free fall is affected by air resistance (drag).
Calculating projectile motion
Designing spacecraft trajectories
Free fall amusement park rides
Option B (deceleration) is incorrect because gravity increases the velocity of a downward-falling object.
Option C is incorrect because the gravitational force acts continuously throughout the fall, not just upon impact.
Option D is incorrect because gravity itself is an external force acting on the object.
A is correct тАФ when an object falls under gravity, the object experiences an acceleration due to the gravitational pull of the Earth.
Remember that acceleration due to gravity (g) does not depend on the mass of the falling object. This is a favorite conceptual trap in Indian competitive exams like RRB, SSC, and UPSC.
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