26. A 1250 kg car is travelling 25 km/h when the driver puts on the brakes. The car comes to a stop after going another 10 m. What was the average frictional force that caused the car to stop? If the same car was travelling at

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Please answer question 26
continued from previous page
25. A child's toy race car travels across the floor
with a constant velocity of 2.10 m/s. If the
car possesses 14.0 J of kinetic energy, find
the mass of the car.
26. A 1250 kg car is travelling 25 km/h when the
driver puts on the brakes. The car comes to a
stop after going another 10 m. What was the
average frictional force that caused the car
to stop? If the same car was travelling at
50 km/h when the driver put on the brakes
and the car experienced the same average
before
stopping force, how far would it go
coming to a complete stop? Repeat the
calculation for 100 km/h. Make a graph of
stopping distance versus speed. Write a
statement that describes the relationship
between speed and stopping distance.
Transcribed Image Text:continued from previous page 25. A child's toy race car travels across the floor with a constant velocity of 2.10 m/s. If the car possesses 14.0 J of kinetic energy, find the mass of the car. 26. A 1250 kg car is travelling 25 km/h when the driver puts on the brakes. The car comes to a stop after going another 10 m. What was the average frictional force that caused the car to stop? If the same car was travelling at 50 km/h when the driver put on the brakes and the car experienced the same average before stopping force, how far would it go coming to a complete stop? Repeat the calculation for 100 km/h. Make a graph of stopping distance versus speed. Write a statement that describes the relationship between speed and stopping distance.
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