Write your answers (with appropriate precision) in the blanks provided. Indicate

Question

Write your answers (with appropriate precision) in the blanks provided. Indicate all units 9. Use the following results of the "Acceleration/Velocity" experiment to fill out the table below 1.6 T 1.2 0.8 0.6 0.4 0.2 time (s) -0.20 0.5 1.5 2.5 3. 3.5 1.2 0.8 E 0.6 0.4 0.2 ime e (s) 0.5 1.5 2.5 3,5 -0.2 Amount of weight hanging over the pulley? Tension in the cord while the cart is moving under the influence of the weight hanging over the pulley? When does the weight at the end of the pulley hit the floor? Between what times is the cart moving away the sonar? At what range of times is the cart closest to the sonar? Cart's acceleration when it is moving under the influence of the weight hanging over the pulley? Cart's velocity at 2.0 seconds? Cart's acceleration at 2.0 seconds? Mass of the cart?

Explanation / Answer

1.Amount of weight hanging over the pulley = 1.5 N ( weight= force when there is no motion)

2.Tension in the cord while the cart is moving under the influence of the weight hanging over the pulley = 1.1 N ( because of acceleration, tension will be lesser than the weight)

3.After 2.3s, the weight will be on the floor as the force=0

4. Between 0.75 to 2.5s, the cart is moving away from the sonar as velocity is uniform

5.Between 0 to 0.75s, the cart is the closest to the sonar.

6. Cart's acceleration is the slope of the velocity time graph = (1-0)/(2.25-0.75) = 2/3 m/s2

7. Cart's velocity at 2.0 s= 0.8 m/s ( from the graph)

8. Cart's acceleration at 2.0 s is 2/3 m/s2 ( slope of velocity-time graph at t=2.0 s)

9. mass of the cart = force/ acceleration = 1.1 / (2/3) = 1.65 kg

all the best in the course work

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