2. A student writes: "A basketball falls faster than a ping-pong ball because the basketball has less drag". Given that the drag force increases with an object's area, how would you correct their statement? Well, since the drag force is depending on the object's area So, it will be more In case of basketball than a ping - Pong ball SA , the ping - pong ball will fall Pastex 3. For what combination of an object's physical properties and speed through the air may we "neglect air resistance", as often assumed in science textbooks, and treat the object as falling under the influence of gravity alone? Well , we can neglect air resistance if the object across the sectional Surface area small or If the speed of object Is low 4You may enter values directly into this table, or copy it neatly for a larger version. Sample calculations of terminal speeds and averages can be shown in your lab notebook. Drop height 1 filter 1.5 filters 2 filters 2.5 filters 3 filters 3.5 filters 4 filters H = 1.50 m. Mass m (gram) 1.32 1-98 2-64 3. 25 13.96 4. 62 5-2 Weight Fo= mg (milli-N) 12-9 19.40 25. 87 31-85 38.80 45-28 50 - 96 Start frame # 306 3 6 6 329 358 419 18 46 End frame # 410 438 398 419 10 3 70 96 Fall time to (s) 1.73 1 . 2 1.15 1- 02 0 . 9 0-87 0 . 83 time UT = It ( m/s) 10. 87 1.25 1.47 1.67 1-72 1.81 1. 30 (m:/ sz ) 10- 76 1. 56 1-69 2- 16 2- 79 2. 96 3- 28 From your graph of Fg (vertical axis) vs. Ur (horizontal axis), Best fit slope b = 1/2 CDPA kg/m. => drag coefficient of a coffee filter CD = Questions: 1. Referring to Equations 1 & 2, when a skydiver of mass 80kg falls at his terminal speed: a. What is his weight Fg = mg, in Newtons? b. What is the (i) net force acting on him, in Newtons, and (ii) his acceleration?. (i) Net Force. (ii) Acc c. Therefore, what must be the force of air resistance Fo acting on him, in Newtons? 3