Question:
A car moving along a straight highway with speed of $126Kmh^{-1} $ is brought to a stop with in a distance of 200m. what is the retardation of the car
A car moving along a straight highway with speed of $126Kmh^{-1} $ is brought to a stop with in a distance of 200m. what is the retardation of the car
Updated On: Jul 5, 2022
- $3.06ms^{-2}$
- $4ms^{-2}$
- $5.06ms^{2}$
- $6ms^{-2}$
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The Correct Option is A
Solution and Explanation
$\nu^2 - u^2 = 2as$
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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.