TCTIOUN Fan Block A student in a physics lab has a block with a fan attached…
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Question “TCTIOUN Fan Block A student in a physics lab has a block with a fan attached…”
TCTIOUN Fan Block A student in a physics lab has a block with a fan attached to it, as shown in the figure above. The fan has a pivot so that the angle e it makes with the horizontal can be adjusted between 0° and 90°. When the fan is pointed horizontally so that 0 0°, the block accelerates from rest along a track, even though there is friction between the block and the track. For the following questions, assume that the student has access to equipment that would usually be found in a school physics laboratory.
b. Describe an experimental procedure that would allow the student to use the fan-block system, with the fan turned on, to find the coefficient of kinetic friction between the block and the track What quantities would be measured? i. ii. What equipment would be used for the measurements, and how would that equipment be used? Include a labeled diagram of the experimental setup. iii. Describe the overall procedure to be used. Give enough detail so that another student could replicate the experiment. On the dot to the right, which represents the fan-block iv. system, draw and label the forces (not components) that are exerted on the system during the experiment described in parts bi-iii. Represent each force by a distinct arrow starting on, and pointing away from, the dot. b. Describe how to analyze the data from the experiment described in parts bi-iii in order to determine the coefficient of kinetic friction between the block and the track. Your analysis may include the force F exerted by the air on the fan-block system. Do not add to the free-body diagram in part biv.
Answer
Normal force TN-mg) T (Thrust, exerted by Jan friction force ng (weight) Block alllllllllll 777 777777 (1) Instruments Required l weight measuring device 1 2 Anemometer [‘ to ceasse -the experiment 3. Speedometer (To measure -Uhuxfeed of block). Clock. Clock. Tilt of fan moving in a direction (T). 2 Weight of whole arrangement (fan + block) 3 Distance measured at timelopec from instala point A. B. 4 Velocity block of poind R. Frustt. Time (o feel the ction force A.TE – fiction force Pant at t=Lose. (How to measure the shrupt exerted on the fan- [Block] – Block). o More of the setup. (Mass of setup + Thrust).
– Measure the arrangement on a mapy measurement device. – Turn fan at 9o angles. – Take the readings before and after the fan is switched on. To determine the thrust exerted on the fan, you can divide the reading. v The Thrust that we have is T Mewton. Now, put fan on doo. Now, put the (faueblock), arraugment on the surface. The block’s surface should be smooth enough that the friction can be reduced. * Set the timer.. Run the experiment. At t=to sec, measure the final relocity of block (W). You can then see the prition force again. IN=my. Weighest o Thor araughkent teaterTraustforce) – Block d = UNE d – Resultant forceon Arrangement, Qepfia = (I-lea). Initial velocity (450), final velocity (W – UN = LT- UN = 2dm. de ut & takot 2 (:40) de & akt? Ak= 20 u = HT- 2am T-UN, OC
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