Figure 9. roller-blading (http://weelookang.blogspot.sg/2014/05/tracker-koaytzemin-student-video-roller.html) down an inclined slope video analysis by student with a model added by the teachers to guide-mentor the students where initial velocity, vx = -0.3991, vy = 0.7494, forces in x’ and y’ parallel and perpendicular to the slope directions are defined as Fx’ = g*sin(5.7*pi/180)-k*vx where pi =π = 3.14159, gravitational acceleration, g = 9.81, air drag coefficient k= 0.708 and lastly Fy’ = 0

From

Video Analysis and Modeling Performance Task to Promote Becoming Like Scientists in Classrooms

Loo Kang Wee, Tze Kwang Leong

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