pete20r2
pete20r2
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these guys are both wrong for the last question: KE = 0.5mv^2 KE = 0.5(60)(1.5)^2 KE = 67.5 joules( this is the kinetic energy of the skier at 1.5m/s.) so: Gravitational PE at top of slope = m * g * h = 60 * 9.8 * 30 = 17640 J this…