Week 4 Fall 2019 sWB-Building Height Ironman steps from the top of a tall building. He falls freely from rest to the ground a distance of h He falls a distance of n/3 in the last interval of time of 1.2 sof his fall. Part A What is the height nof the building? Express your answer using two significant figures Hint: First, compute the velocity when Ironman reaches the height equal to the distance fallen. This requires that you do the following: define origin as the bottom of the building Then use x-x0 -v0*(t-t0)-(1/2)g (t-t0)^2 where x-0 and x0= (distance fallen) and t-t0 is the time interval given. In this formulation you are going to get magnitude of vO since you already inserted the sign. AE ш Request Answer Submit You then insert v0 that you just calculated into the kinematic equation that involves v, g, and displacement (v 2-v0^2 = 2g(height-(distance fallen), but now v (which is the final velocity is vo from above) and vO in this case is the velocity that the Ironman has when he begins to fall, which is 0. Provide Feedback This gives a quadratic equation for height h, and you will need to use the binomial equation to solve for h. Choose the larger of the two solutions.

Week 4 Fall 2019 sWB-Building Height Ironman steps from the top of a tall building. He falls freely from rest to the ground a distance of h He falls a distance of n/3 in the last interval of time of 1.2 sof his fall. Part A What is the height nof the building? Express your answer using two significant figures Hint: First, compute the velocity when Ironman reaches the height equal to the distance fallen. This requires that you do the following: define origin as the bottom of the building Then use x-x0 -v0*(t-t0)-(1/2)g (t-t0)^2 where x-0 and x0= (distance fallen) and t-t0 is the time interval given. In this formulation you are going to get magnitude of vO since you already inserted the sign. AE ш Request Answer Submit You then insert v0 that you just calculated into the kinematic equation that involves v, g, and displacement (v 2-v0^2 = 2g(height-(distance fallen), but now v (which is the final velocity is vo from above) and vO in this case is the velocity that the Ironman has when he begins to fall, which is 0. Provide Feedback This gives a quadratic equation for height h, and you will need to use the binomial equation to solve for h. Choose the larger of the two solutions.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 65P: Unreasonable results Dragsters can actually reach a top speed of 145.0 m/s in only 4.45 s. (a)...

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