Procopio is driving a car (m = 1000 kg) at v7 = 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 Fwas needed to stop the car?
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Given:
- The mass of car is .
- The initial velocity of car is .
- The distance travelled by car is .
- The final velocity of car is .
The formula to calculate the work done by force is,
Here, W is the work done, F is the force applied and s is the distance travelled.
The formula to calculate the initial kinetic energy of the car is,
Here, K1 is the initial kinetic energy, m is the mass and v1 is the initial velocity of car.
The formula to calculate the final kinetic energy of the car is,
Here, K2 is the final kinetic energy and v2 is the final velocity of car.
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