Question:
If an iron ball and a wooden ball of the same radius are released from a height $ h $ in vacuum, then time taken by both of them, to reach the ground will be:
If an iron ball and a wooden ball of the same radius are released from a height $ h $ in vacuum, then time taken by both of them, to reach the ground will be:
Updated On: Jul 12, 2022
- zero
- unequal
- roughly equal
- exactly equal
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The Correct Option is D
Solution and Explanation
Since, the time of fall of both balls in vacuum do not depends on the mass of balls, hence, the time taken by both balls will be exactly equal.
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Concepts Used:
Motion in a straight line
The motion in a straight line is an object changes its position with respect to its surroundings with time, then it is called in motion. It is a change in the position of an object over time. It is nothing but linear motion.
Types of Linear Motion:
Linear motion is also known as the Rectilinear Motion which are of two types:
- Uniform linear motion with constant velocity or zero acceleration: If a body travels in a straight line by covering an equal amount of distance in an equal interval of time then it is said to have uniform motion.
- Non-Uniform linear motion with variable velocity or non-zero acceleration: Not like the uniform acceleration, the body is said to have a non-uniform motion when the velocity of a body changes by unequal amounts in equal intervals of time. The rate of change of its velocity changes at different points of time during its movement.