Velocity and Acceleration on an Air Track - Pre-Lab Questions 1. An air track is

Question

Velocity and Acceleration on an Air Track - Pre-Lab Questions 1. An air track is inclined by elevating one end. You release a cart and let it slide down the incline. Ignoring friction, the cart will down the track a) accelerate b) move with constant velocity 2. If the angle of inclination is increased, the cart will move down the track with a) a larger acceleration. b) a larger constant velocity. 3. You measure the flag on top of the glider to have a width of 2.5 cm. You release the cart from rest, and it slides down the track and passes through the photogate. The photogate timer reads 0.0259 sec How fast is the glider moving when it passes through the photogate?

Explanation / Answer

1) (a) accelerate

The acceleration due to gravity acts on it so it will accelerate down the track.

2) (a) a larger acceleration

The acceleration down the track is gsin(th). So, as the angle of inclination is increased, sin(th) increases, so acceleration increases.

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