A circus performer throws a knife at a bound stagehand who is tied to a post. The knife is thrown at an angle of 17.8° below the horizontal with an initial speed of 3.11 m/s. The knife hits the post between the stagehand's feet, a distance of 0.63 m vertically below where it was released. How far from the post was the performer when she threw the knife? Select one: a. 0.81 m cross out b. 0.38 m cross out c. 0.17 m cross out d. 0.77 m cross out e. 0.65 m cross out Your answer is incorrect. The correct answer is: 0.81 m

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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A circus performer throws a knife at a bound stagehand who is tied to a post. The knife is thrown at an angle of 17.8° below the horizontal with an
initial speed of 3.11 m/s. The knife hits the post between the stagehand's feet, a distance of 0.63 m vertically below where it was released. How far
from the post was the performer when she threw the knife?
Select one:
a. 0.81 m
cross out
b. 0.38 m
cross out
c. 0.17 m
cross out
d. 0.77 m
cross out
e. 0.65 m
cross out
Your answer is incorrect.
The correct answer is: 0.81 m
Transcribed Image Text:A circus performer throws a knife at a bound stagehand who is tied to a post. The knife is thrown at an angle of 17.8° below the horizontal with an initial speed of 3.11 m/s. The knife hits the post between the stagehand's feet, a distance of 0.63 m vertically below where it was released. How far from the post was the performer when she threw the knife? Select one: a. 0.81 m cross out b. 0.38 m cross out c. 0.17 m cross out d. 0.77 m cross out e. 0.65 m cross out Your answer is incorrect. The correct answer is: 0.81 m
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