Math Problem Statement
A car is traveling down the road at 29 m/s. The driver sees a deer in the road up ahead and applies the breaks, resulting in an acceleration of -12.5 m/s^2. How far does the car continue to move before coming to a stop? Round to the nearest meter.
Solution
To solve the problem, we can use the kinematic equation:
Where:
- is the final velocity (0 m/s, since the car comes to a stop),
- is the initial velocity (29 m/s),
- is the acceleration (-12.5 m/s),
- is the distance traveled.
Rearranging the equation to solve for :
Substituting the given values:
Rounding to the nearest meter:
So, the car continues to move approximately 34 meters before coming to a stop.
Would you like more details or have any questions?
Here are 5 related questions:
- What would happen to the stopping distance if the car's initial speed were higher?
- How does the magnitude of acceleration affect the stopping distance?
- What would the stopping distance be if the acceleration were less negative, say -10 m/s²?
- How long does it take for the car to stop?
- How would the stopping distance change if the road were uphill or downhill?
Tip: Remember that a higher initial speed or a less negative acceleration would result in a longer stopping distance.
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Math Problem Analysis
Mathematical Concepts
Kinematics
Equations of Motion
Formulas
Kinematic equation v^2 = u^2 + 2as
Theorems
-
Suitable Grade Level
High School
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