Question

What affect does increasing the height from which the car is released have upon the speed of
the car at position B?
a. Increasing the initial height causes the speed to increase.
b. Increasing the initial height causes the speed to decrease.
c. Increasing the initial height first decreases the speed and then increases it.
d. Increasing the initial height has no affect upon the speed of the car at position B.
2. What affect does increasing the height from which the car is released have upon the distance
that the box and car skid before stopping?
a. Increasing the initial height causes the box and car to skid less distance.
b. Increasing the initial height causes the box and car to skid a further distance.
c. Increasing the initial height does not affect the distance the box and car skid.
d. It is not possible to predict the affect that increasing height has upon the skid distance.
Doubling the initial height of the car (hA) causes the speed of the car at position B (vB) to be
____.
a. roughly one-half the value it has before the doubling
b. roughly twice the value that it had before the doubling
c. greater, but definitely not twice as great
d. greater - approximately four times greater
5. Doubling the initial height of the car (hA) causes the distance that the box and car skid to a
stop (dBC) to be ____.
a. roughly one-half the value it has before the doubling
b. roughly twice the value that it had before the doubling
c. greater, but definitely not twice as great
d. greater - approximately four times greater
6. What distance did the box and car slide before stopping in trial 4?
a. 33 cm b. 68 cm
c. 71 cm d. 74 cm
dBC

vB

dBC

vB

dBC

vB

dBC

vB

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7. What distance will the box and car slide to a stop if the car hits the box while moving at
3.54 m/s?
a. 2.2 cm b. 52 cm
c. 67 cm d. 71 cm
e. 74 cm
8. What distance will the box and car slide to a stop if the car is released from a height of 0.80
m?
a. 30 cm b. 37 cm
c. 67 cm d. 70 cm
e. 74 cm
9. Predict the speed that the car would have at position B if the car were released from a height
of 1.20 m?
a. 4.35 m/s b. 4.69 m/s
c. 5.73 m/s d. 6.14 m/s
10. The car is released from a location along the track and is found to hit the box and slide a
distance of 60 cm. Which one of the following statements is true?
a. The initial height of the car was 0.60 meters.
b. The car's initial height was less than 0.60 meters.
c. The car was traveling with a speed of 3.07 m/s at position B.
d. The car was released from a height between 0.60 meters and 0.80 meters.
11. Predict the distance that the box and car would slide to a stop if the car were released from a
height of 1.60 m?
a. 73 cm b. 133 cm
c. 147 cm d. 294 cm
12. Inspect Trials 1 and 4. Observe that the ratio of the speeds of the car at Position B is a 1:2
ratio. Based on this observation, which one of the following statements is true?
a. When the car is traveling with twice the speed, it will slide twice the distance.
b. When the car is released from twice as high, it will move with twice the speed.
c. To get a car to slide twice the distance, it must be released from four times the height.
d. To get a car to travel twice the speed, it must be released from four times the height.

Answer 1

Explanation:

$the \:meanng \: of \: frvt \ = \frac{25}{52}$