Question

Read carefully. Use trig to find height of track (in row 1 of the table shown) for both photogate 1 and photogate 2. Explain what formulas and steps you took.

H- Make sure your track is level from front to back and the photogates are precisely positioned at the 30cm and 90cm marks on the track. Raise one end of the track until it's approximately 3.0 Use the distance between photogates, 60.0cm, and use the sine of the track angle to determine Ah. Make several runs to be sure of consistent data then fill out the table below. Trial 1: Down the Incline Angle of the incline: Photogate 1 (highest) Photogate 2 Lowest Helght of track (m) Potential Energy (J) Speed of Cart (m/s) Kinetic Energy (J) Total Mechanical Energy (J) Show wour calei

Answer 1

. cw . Tarla E Mr Triali: Down the incline. Angle of inclination = 3° Photogate photo gate 2 | h = 0.0366 m bzzo: 0052 m Caleaktion Calculation a fit, L = 100 cm Bezlour :, ☆ = sino BF = Bex Sin3 H = h sino = 10x sinzo = 100 x 5n39 523 em 1.;h, 20152 cm h z bingo h = bo Sin 3 33.14 an . height = he BE 23:14 P0952 h, = 3:66 cm 39. (4h 2:50 15) - = 50 x 9.8 x 6.0366 :5089.8 6'0052 € 17.934 J ) = 2.548 2 mgr = mgH - mgh, 2 = Fg ( H - h2) 342123( H -hi) | /2x9.8x(0.0523 - 1289-8*(1523] -0.0052) = 0.55 m/s Potential energy . speed of eart (m/s) -0.634 10.96 m/s

Photogate! Kinetic enersy žmore = **50 x(0'55) 1 = 7:57 J photogate 2 mur Texsoy (orqb), 2 2304 5 energy Total mechanical; kietbie = 17.934+7:56 = 25.499 ~ 25.5 JT kieppe = 23,04 +2:518 2.25:588 . ~ 25:5 I