# How long does it take a plane, traveling at a constant speed of 110 m/s?

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How long does it take a plane, traveling at a constant speed of 110 m/s, to fly once around a circle whose radius is 2700 m?

• Circumference = distance flown = pi x dia = 3.14 x 2700 x 2

= 17000 m

Time = distance/speed = 17000/110 = 154 seconds

• a. time to takeoff: v = at, for this reason, t = v/a t = sixty one (m/s) ÷ 2.5 (m/s²) t = (sixty one/2.5) • (m/s ÷ m/s²) t = 24.4 (m/s • s²/m) t = 24.4 (s²/s • m/m) t = 24.4 (s • a million) T = 24.4 seconds. word that I spent greater time twiddling with the size than I did the values. That grow to be intentional. i be conscious of I did the difficulty properly by using fact time got here out to be measured in seconds. Had each and every little thing no longer canceled yet seconds i could have executed something incorrect. b. length of runway: v = d/t, for this reason d = vt, yet for this reason the speed grow to be no longer a relentless so the area is comparable to the uncomplicated velocity. The acceleration is continuous so the uncomplicated speed is (sixty one m/s + 0 m/s)/2. comprehend that the airplane began out at a lifeless quit and ended up going sixty one m/s. d = 30.5 m/s • 24.4 s d = (30.5 • 24.4) (m/s • s) d = 744.2 (s/s • m) D = 744.2 meters. word that lower back the measurement, meters, has a similar opinion with length. something are yours. .

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