StarShine1 StarShine1

06-03-2017
Physics

contestada

A 100 m cable is stretched from the ground to the top of a pole. If the angle of the cable with the ground is 10 degrees, how high is the pole?
A. 17.4 m
B. 90 m
C. 98.5 m
D. 110 m

Respuesta :

jiayangchang jiayangchang

07-03-2017

Imagine a right angle triangle with the diagonal side being 100m long. Since the angle between the ground and cable is 10 degrees, sin 10 = pole/cable.

Pole length = 17.36m
Answer is A, 17.4m.

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