ssignment Submission For this assignment, you submit answers by question parts.

Question

ssignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each ssignment Scoring Your bestsubmission for each question part is used for your score question part only changes if you submit or change the answer. 11 8.P043. A model airplane with a mass of 0.747 kg is tethered by a wire so that it flies in a circle 30.8 m in radius. The airplane engine provides a net thrust of 0.800 N perpendicular to the tethering wire. (a) Find the torque the net thrust produces about the center of the circle N m (b) Find the angular acceleration of the airplane when it is in level flight. rad/s2 (c) Find the linear acceleration of the airplane tangent to its flight path. m/s Need Help? Pead It P11 8.P072. MacBook Air

Explanation / Answer

Part A

Torque is given by:

T = rxF = r*F*sin theta

Now thrust force is perpendicular to radius, So

sin 90 deg = 1

T = r*Fthrust = 30.8*0.800 = 24.64 N-m

Part B

Since

T = r*F = I*alpha

alpha = T/I

I = moment of inertia = m*r^2

alpha = 24.64/(0.747*30.8^2)

alpha = 0.035 rad/sec^2

Part C

linear acceleration is given by:

a = r*alpha

a = 30.8*0.035 = 1.08 m/sec^2

Please Upvote.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.