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Name: Pebb\e Wage | Date: | [5 (49 Instructor: Physics 1010 Module 2 Homework OpenStax College Physics, Chapter 2 Problems 1) Find the following for path A in the figure shown below: A ies 7 & | > { | D ev ott —_ —% | Oe 4 6 Be ay ag displacement x (m) a. The distance traveled. +t0mM | b. The magnitude of the displacement from start to finish, » AX = Xe~ Xq = +-o =-lhin [4 +.0™, c. The displacement from start to finish. S +.0M 2) Using the same visual from problem #1, find the following for path C: a. The distance traveled. &.0mM + 2M +tm = [120m] b. The magnitude of the displacement from start to finish. IX = 1% ~x,1 = [0.0m 2.0m] = 18, Om) =/3.0m] c. The displacement from start to finish. AyY= \Odm ~ 2.0m +8 0m 3) The average radius of Earth’s path around the Sunis 1 *10*4m \ a. Calculate Earth’s average speed relative to the Sun. lo". aN Lpled ~ dion, _ ©: 2B SNES Koy ~ (4423.85 "6 ~- ga2tir= zm (lx — h u time 315 4 b000¢ = 4 = 3b6 dayd 4 S008 X10 Z.0xK\0 m/s ay | 2153b000S b. What is its average velocity over a period of one year? —~. 0 -|omss] 4) A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. Sy a. Calculate the average speed of the blade in the helicopter’s frame of reference. 3 _ ZT 00w) =| 2. | 1-608 —— ~ 0. WS 22 A m/s * * Trev = LW /rey b. What is its average velocity over one revolution? Vroom —- #0 dlplaumat afler 4 fale rewlupan. 9) On May 26, 1934, a streamlined, stainless steel diesel train called the Zephyr set the world’s nonstop long-distance speed record for trains. Its run from Denver to Chicago took 13 hours, 4 minutes, 58 seconds, and was witnessed by more than a million people along the route. The total distance traveled was 1633.8 km. What was its average speed in km/hr AND m/s? A=W33.8 Km b= 19h 4 Fming ACY gg yth = 13,0392 788 h “! ZOOS 3 1b33.8 ttm — = aT - [| 724, Vary L 1$,O827t2h lize " L/h | ——— 124.332 km |, 1000m w maa’ ~|34, 684 m/S| 1h 1 10m Y) A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration? =amtS m+ vo —_— 30.0 WS | 24 ms ver 40.0 mis A= 00s te Amis t= 4.095 10) Dr. John Paul Stapp was a U.S. Air Force officer who studied the effects of extreme deceleration on the human body. On December 10, 1954, Stapp rode a rocket sied, accelerating from rest to a top speed of 282 m/s (1015 km/hr) in 5.00 s, and was brought jarringly back to rest in only 1.40 s! a. Calculate his acceleration, and express this in multiples of g (9.80 m/s*) by taking its ration to the acceleration of gravity. Vis Omnis paths BBEMS=OMK 1564 msc] 7 90S ~ L 5.008 += oO" . z ) ai “¢ qs= bt ms 18 4536s | b. Calculate his deceleration, and again, express this in multiples of g (9.80 m/s’) by taking its ration to the acceleration of gravity. V,= 282 mt§ Ve = 0 = OPES }-201 m/s) l.408 
