Mechanics: 1-Dimensional Kinematics
1-D Kinematics: Audio Guided Solution
Problem 9:
A Formula One car is a single-seat racing car with an open cockpit and
substantial wings located in the front and rear. At high speeds, the
aerodynamics of the car help to create a strong downward force which
allows the car to brake from 27.8 m/s (100 km/hr or 62.2 mi/hr) to 0 in
as small of a distance as 17 meters. Determine the
deceleration
rate (i.e., acceleration) achieved by such a car.
- Read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
- Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., vo = 0 m/s; a = 4.2 m/s/s; vf = 22.9 m/s; d = ???.
- Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
- Identify the appropriate formula(s) to use.
- Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.
Get more information on the topic of Kinematics at The Physics Classroom Tutorial.
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