Procopio is driving a car (m = 1000 kg) at v1 = 11.11 m/s when he stepped on the brakes. The car traveled a distance of s = 15 m before stopping completely. How much force F was needed to stop the car? %3D The formula for the work done by the force F as the car traveled a distance s before stopping is: W = By the work-energy theorem: 2 W = - K1 = -½ Combining these two equations for work and isolating F, we obtain an expression for F: F = 20 Plugging in values, we know that 4.4 newtons of force is needed to stop the car.

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Chapter1: Units, Trigonometry. And Vectors
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Express your answers without rounding off and without scientific notation unless instructed otherwise. Do not include the units.
Multiple Blanks
Write powers or subscript as is. Ex: Use b2 if you mean
or b2
Write transcendental functions as is. Ex. Use costheta if you mean cose.
Spell out Greek letters. Ex: Use pi if you mean A
Write answers without spaces. Ex: Use 2epsilonOr3 if you mean 2e
Write fractions with a slash. Ex: Use 1/2 if you mean
2
Transcribed Image Text:Calculated Answers Express your answers without rounding off and without scientific notation unless instructed otherwise. Do not include the units. Multiple Blanks Write powers or subscript as is. Ex: Use b2 if you mean or b2 Write transcendental functions as is. Ex. Use costheta if you mean cose. Spell out Greek letters. Ex: Use pi if you mean A Write answers without spaces. Ex: Use 2epsilonOr3 if you mean 2e Write fractions with a slash. Ex: Use 1/2 if you mean 2
Procopio is driving a car (m = 1000 kg) at v1 = 11.11 m/s when he stepped on the brakes. The car traveled a
distance of s = 15 m before stopping completely. How much force F was needed to stop the car?
The formula for the work done by the force F as the car traveled a distance s before stopping is:
W =
By the work-energy theorem:
2
W =
- K1 = -½
Combining these two equations for work and isolating F, we obtain an expression for F:
F =
Plugging in values, we know that
4.4 newtons of force is needed to stop the car.
Transcribed Image Text:Procopio is driving a car (m = 1000 kg) at v1 = 11.11 m/s when he stepped on the brakes. The car traveled a distance of s = 15 m before stopping completely. How much force F was needed to stop the car? The formula for the work done by the force F as the car traveled a distance s before stopping is: W = By the work-energy theorem: 2 W = - K1 = -½ Combining these two equations for work and isolating F, we obtain an expression for F: F = Plugging in values, we know that 4.4 newtons of force is needed to stop the car.
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