Question

Steve is standing atop a mountain watching an airplane fly by. There is a strong wind blowing at 125°CW from North at 500 m/s. Jim is on an airplane pointed due west, moving at 2000 m/s. Jim's airplane has a mass of 3000 kg. i) ii) What is the planes velocity (direction and magnitude) relative to Steve? What is the kinetic energy of the airplane from Jim's perspective? From Steve's? Jim turns on the airplane's headlights, what does Steve measure the speed of the headlight's light to be?

Answer 1

Steve Timon acroplane 2000m/s E 2000m/s 350 409.5 500m/5 Direction of wind 286.78 5 Effective and South velocuity direction Broaking wind's speed in East 409.5 2000m/5 286.78 Net Effective velouly of Jim with respect to Steve 159054 Velocaly and wand E o direction added to get 286.78 effective velonly 1590 5 m/s in W est direction Veft = /286.78]²+ (hotos) = 1616. 14 1616. 14 = Vest M

2611933.0184 classmate Dateo Date page 5 I Plane Velocity And direction Mood Magnitude is 1616. 149/5. is s/we (south-west) 1) KEaietane = mv2 Velocity with Jim's breebective = 0 : KE with Jim's prespective =0 Velocely with Steve s prospectus = 1616. 14 m/s KE with Steves's prespectore - I mv 3.9x109 1) The speed of the head light's light to be = speed of light The second postulab of Speal relatwily is the idea that of Speed of light is constant and independent. of the relatiue motion of the source :