3) Cullin is flying his private jet at a constant speed of 750 km/h while David is flying his helicopter due north. The flight attendant on Cullin's jet begins walking towards the back of the airplane as a constant speed of 4 m/s relative to the airplane. If the flight attendant observes David moving directly westward at 38 m/s, what is the velocity of the helicopter in m/s? Hint: You will need to find theta; don't forget about your ability to use dot products to simplify your equations. [Ans. to Check: VB-200.76 m/s] N VB+ B Ꮎ VC A V₁ A

Hello Doctor, could it be a nice font with mentioning the name ((Murtada Ali Qassem) Thank you Doctor I will give you the admiration Q2/ PROBLEM 11.46 Car A is parked along the northbound lane of a highway, and car B is traveling in the southbound lane at a constant speed of 60 mi/h. At t= 0, A starts and accelerates at a constant rate a, while at t=5 s, B begins to slow down with a constant deceleration of magnitude a,16. Knowing that when the cars pass each other x = 294 ft and v = v, detemine (a) the acceleration a, (b) when the vehicles pass each other, (c) the distance d betwveen the vehicles at 1 = 0. (o = G0 mi/b ()g = 0 B

A car P travels along a straight road with a constant speed v = 64 mi/hr. At the instant when the angle 0 = 60°, determine the values of r in ft/sec and 8 in deg/sec. Assume = 113! Answers: r = 1 0 = F MI x חומון V ft/sec deg/sec

The velocity of A is 1.7 m/s downward, the velocity of B is 2.6 m/s upward, and the velocity of D is 3.1 m/s downward. Find the velocity of C. The velocity of C is positive if downward, negative if upward. D B Answer: vc= i C ! m/s

Car A is moving with constant speed v on the straight and level highway. The police officer in the stationary car P attempts to measure the speed v with radar. If the radar measures “line-of sight” velocity, what velocity v' will the officer observe? Evaluate your general expression for the values v = 74 mi/hr, L = 605 ft, and D = 19 ft, and draw any appropriate conclusions.

Vr A camera tracks the position of a particle moving along the given path with b = 10 m. At the moment shown, the camera angle is 0 = 40°, and the camera is rotating at 0.3 rad/s, which is accelerating at a rate 0 = 0.2 rad/s². What are the radial and transverse components of velocity and acceleration at this instant? Vo = Ar 0 ao = r = b sin(20) m/s m/s m/s² m/s² =

During the middle of a family picnic, Barry Allen received a message that his friends Bruce and Hal needed to be saved. Barry promised his wife Iris that he would be back in exactly 5 minutes. From that that picnic location, Barry runs at a speed of 600 m/s for 2 minutes at a heading of 35° north of west to save Bruce. He then changed his heading to 30° west of north, slows down to 400 m/s and runs for 1 minute to save Hal. (The changes in speed are essentially instantaneous and not part of solving this problem).(a) Draw a physical representation of the displacement during Barry’s full trip.(b) Use the Related Quantities sense-making technique to compare Barry’s total distance traveled to themagnitude of his displacement.(c) What average velocity (magnitude and direction) does Barry need to return back to the picnic inorder to keep his promise to Iris?

At a given instant A has the motion shown in (Figure 1). Figure 3 ft 1.5 ft- PA-3 ft/s -X a₁-681/² 1 of 1

Question 2 A red car and a green car are moving toward each other. Figure below is a graph of their motion, showing the positions xro = 270 m and xgo = -35 m at time t = 0. The red car has a constant speed of 20.0 m/s and the green car begins from rest. (a) At what distance does the two cars meet? (b) What is the acceleration magnitude of the green car? Xgo 12 I (s) (u) x

A boat travels across a river. A boat moves at 7 m/s relative to the water. The river is flowing at 3 m/s. At what angle, 8, should the boat be directed so that it ends at the same x-location as it started? VR = 3 m/s VB/R = 7 m/s 0