In the lab, you will be analyzing the collisions of two pucks on an air table. T

Question

In the lab, you will be analyzing the collisions of two pucks on an air table. The pucks are connected to an electric pulsing system that poides a brief electric pulse 60 times per second. Each pulse results ina spark being produced between the puck and the table. By placing a sheet of paper between the puck and the table, we can use the sparks to record the position of the pucks at regular intervals. The trails of spark marks look like this: Puck Puck 4. How much time passes between two consecutive marks, in MILLISECONDS? 5. Using a ruler, we determine that the distance between points X and Y in the figure iscm. What is the speed of puck 2 after the collision, in cm/s? Point Y Puck 1 Point X Puck 2

Explanation / Answer

4. Time between two consecutive marks = time period = 1/frequency = (1/60) sec = 0.0167 s = 16.7 millisec

5. Distance between points x and y in fig. is = 6 cm

Time taken by puck 2 to go from x to y = (6×0.167) sec

= 0.1002 sec

So, the speed of puck 2 = distance/time

= (6/0.1002) cm/sec

= 59.88 cm/s

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.