After extensive research, a physicist has developed a way to determine the minimum stopping distance of a car. The stopping distance, s, is greater than or equal to the ratio of the square of the speed of the car, u, to twice the deceleration, d. Which of the following inequalities represents this situation?
Answers
Given : After extensive research, a physicist has developed a way to determine the minimum stopping distance of a car.
The stopping distance, s, is greater than or equal to the ratio of the square of the speed of the car, u, to twice the deceleration, d.
To Find : inequalities representing this situation
Solution:
Stopping distance = s
speed of the car = u
deceleration = d
ratio of the square of the speed of the car, u, to twice the deceleration, d.
= u² / 2d
The stopping distance, s, is greater than or equal to the ratio
=> s ≥ u² / 2d
s ≥ u² / 2d represents this situation
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