Questions 1-3 An 80 kg parachute jumper falls towards the ground at a terminal velocity of 6 m s-¹. 1. On landing (with bent knees) the jumper comes to rest with a constant deceleration acting for 0.1 s. Over what distance did the jumper come to rest (in m)? (A) 0.1 (B) 0.15 (C) 0.2 (D) 0.3 (E) 0.5 2. What was the normal reaction from the ground on the jumper (i.e., the total force from the ground) during the stopping period (in N)? (A) 0 (B) 800 (C) 2600 (D) 4000 3. If the tensions in the jumper's Achilles tendons is 1600 N when the jumper is standing at rest, what was the corresponding tension while the jumper was coming to rest during the landing (in N)? (Assume the jumper's heels are always not quite touching the ground.) (A) 800 (B) 1600 (C) 4000 (E) 5600 (D) 11200 (E) 14400

Questions 1-3 An 80 kg parachute jumper falls towards the ground at a terminal velocity of 6 m s-¹. 1. On landing (with bent knees) the jumper comes to rest with a constant deceleration acting for 0.1 s. Over what distance did the jumper come to rest (in m)? (A) 0.1 (B) 0.15 (C) 0.2 (D) 0.3 (E) 0.5 2. What was the normal reaction from the ground on the jumper (i.e., the total force from the ground) during the stopping period (in N)? (A) 0 (B) 800 (C) 2600 (D) 4000 3. If the tensions in the jumper's Achilles tendons is 1600 N when the jumper is standing at rest, what was the corresponding tension while the jumper was coming to rest during the landing (in N)? (Assume the jumper's heels are always not quite touching the ground.) (A) 800 (B) 1600 (C) 4000 (E) 5600 (D) 11200 (E) 14400

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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