A6) It is observed that the skier leaves the ramp A at an angle 64 = 25° with the horizontal. If he strikes the ground at B, determine his initial speed va and the time of flight tAB- 4 m (- +):x = xo + (vo)xAt 100 m .: 100 (5) = VA cos 25°t --- (1) († +):y = yo + (vo)yAt +(-9)At²

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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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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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A6) It is observed that the skier leaves the ramp A at
an angle 0, = 25° with the horizontal. If he strikes
the ground at B, determine his initial speed vą and
the time of flight taB-
4 m
(- +):x = xo + (vo)xAt
100 m
: 100
= Va cos 25°t --- (1)
(1 +): y = yo + (vo)yAt +(-9)At²
: -100
= 4 + v4 sin 20°t –
(9.81)t² – ---(2)
Los vir (1) en (2) op:
tAB = 4.54 s
VA = 19.4 m/s
Transcribed Image Text:A6) It is observed that the skier leaves the ramp A at an angle 0, = 25° with the horizontal. If he strikes the ground at B, determine his initial speed vą and the time of flight taB- 4 m (- +):x = xo + (vo)xAt 100 m : 100 = Va cos 25°t --- (1) (1 +): y = yo + (vo)yAt +(-9)At² : -100 = 4 + v4 sin 20°t – (9.81)t² – ---(2) Los vir (1) en (2) op: tAB = 4.54 s VA = 19.4 m/s
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