Vectors Day 5 Lyzinski Physics

Vectors Problem Packet Homework Solutions (24-25)

Fx Fy 60 lb F3 45o 33 lb 42.43 lb 42.43 lb 9.43 lb F3 x: y: 24. Fx Fy 60 lb F3 45o 33 lb 42.43 lb 42.43 lb 9.43 lb F3 x: y: -42.43 + 33 + Fx = 0  Fx = 9.43 lb 42.43 + 0 + Fy = 0  Fy = -42.43 lb F3 = 43.5 lb [E 77.5o S]

25. 30o 4000 N T1 T2 T2sin(30) T2cos(30) T1sin(30) T1cos(30)

30o 4000 N T1 T2 T2sin(30) T2cos(30) T1sin(30) T1cos(30)

Vectors Problem’s from Buffa book (pp. 96-97)

Day #5

Dv = 29.15 m/s [E 31o N] a = Dv / Dt= 1.94 m/s2 [E 31o N] 25 m/s

a = Dv / Dt = 55mph[] / 30ms = 55mph[] / .030sec = 55mph[] / (8.333E-6h) = 6,600,000 mi/h2 [] = 814.81 m/s2 []

v1 = 10 m/s 20o 9.396 m/s 3.420 m/s 3.254 m/s v2 = 8 m/s 24o 7.308 m/s 2.088 m/s 6.674 m/s v2 = 8 m/s 24o 3.254 m/s 7.308 m/s v1 = 10 m/s 20o 9.396 m/s 3.420 m/s 7 m/s @ 72.6o off the wall in the reverse direction

Tonight’s HW “Day #5 Vectors HW Problems” (from the packet, #s 26-28) Do Buffa, pg. 97, problems 40, 47, 48, 49, 53