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iPad. 4:42 PM @flipitphysics.com Bulldogs Error- Physi.. My Fresno S Homewor Fresno State.... Cannot Ope... Announcem... FlipltPhysicPhysics AA Mechanics and Wave Motion Fall 2017 Calfomia State University Freso Homework: Newton's Laws Take Off A jet with mass m-610 kg jet accelerates down the runway for takeoff at 2 /s 1) What is che net horiontal force on the airplane as accelerates for takeo 2 What is the net vertical force on the airplane at it accelerates for takeof ) Once of the ground, the plane climbs upward for 20 seconds. During this time, the vertical speed increases from zeno to 21 m/'s, while the hortzontal speed increanes from 80 m/s to 91m/s nat ts the net horizontal force on the airplane as cimbs upward? What is the net vertical forece on the arplane n it climbs upward! 5) After reaching cruising altitude, the plane levels off, keeping the hortzontal speed constant, but smoothly reducing to zera, in 17 nat itthenet horizontal force on the airplanes Ievets off? 6l What is the net vertical force on the airplane as it levels off? 7) Below is some space to write notes on this probiemExplanation / Answer
1] Net force F = mass x acceleration
=> F = 6 x 104 x 2 = 1.2 x 105 N
2] Net vertical force is zero as it accelerates during takeoff since the acceleration is only along the horizontal direction.
3] Horizontal force on the airplane will be:
Fx = max = m[v - u/t] = 6 x 104 [(91 - 80)/20] = 33000 N
4] Net vertical force on the airplane will be:
Fy = may = m[v - u/t] = 6 x 104 [(21 - 0)/20] = 63000 N.
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