(4%) Problem 3: An airplane starts at rest and accelerates at 7.9 m/s2 at an ang
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(4%) Problem 3: An airplane starts at rest and accelerates at 7.9 m/s2 at an angle of 29° south of west. 50% Part (a) After 9 s, how far in the westerly direction has the airplane traveled? west =-319.95 west- -320 XAttempts Remain 50% Part (b) After 9 s, how far in the southerly direction has the airplane traveled? Grade Summary Deductions Potential south - I 0% 100% Submissions tan)T cotan asinOacos0 sinh0) sin cosO Attempts remaining: 200 4 5 6 % per attempt) detailed view atan acotan() cosh0tanh0cota 0 END Degrees Radians DEL CLEAR Submit I give up! Hints: 0 for a 0%-deduction. Hints remaining: 0 Feedback: 0% deduction per feedback.Explanation / Answer
Distance 29 degrees south of west = 1/2 (t^2 x a)
= 1/2*(9^2*7.9) = 319.95 metres.
Distance west = (cos 29 x 319.95) = 279.834 metres.
Distance south = (sin 29 x 319.95) = 155.114 metres.
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