Lab: Newton's Laws of Motion Answers

Calculate the average time it took the car to travel 0.25 and 0.50 meters with four washers attached to the pulley. Record the averages, rounded to two decimal places, in Table C of your Student Guide.

Question text not available

4.9X 0.049✔ 0.0049

9.8✔ 0.0098X 0.00098

✔ 0.01470.001470.000147

0.196✔ 0.01960.00196

4.90.49✔ 0.049

9.8✔ 0.0980.0098

✔ 0.1470.01470.00147

✔ 0.1960.01960.00196

Calculate the first and second velocities of the car with one washer attached to the pulley, using the formulasv1 = 0.25 m / t1, andv2 = 0.25 m / (t2 – t1)where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, rounded to two decimal places, in Table E.

⇒ 0.28

Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas v1 = 0.25 m / t1, and v2 = 0.25 m / (t2 – t1)where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.

⇒ 0.36

Calculate the first and second velocities of the car with three washers attached to the pulley, using the formulas v1 = 0.25 m / t1, and v2 = 0.25 m / (t2 – t1)where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.

⇒ 0.45

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1)where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.

⇒ 0.56

The acceleration for the car with one washer is

0.18✔ 0.330.49