A skier with a mass of 70 starts to slide from = 25 ? above the jumping ramp as shown in the figure and jumps off the ramp at an angle of ? = 30 °. If we consider the ramp to be frictionless and neglect the air resistance effects, (a) What is the maximum height ℎ the skier can reach after jumping off the ramp? (b) If the skier had increased his weight by taking a bag on his back, would the ℎ height be higher, less or remain the same? Explain. (c) If there were air resistance, would the height of ℎ increase, decrease or remain the same? Please explain.
A skier with a mass of 70 starts to slide from = 25 ? above the jumping ramp as shown in the figure and jumps off the ramp at an angle of ? = 30 °. If we consider the ramp to be frictionless and neglect the air resistance effects, (a) What is the maximum height ℎ the skier can reach after jumping off the ramp? (b) If the skier had increased his weight by taking a bag on his back, would the ℎ height be higher, less or remain the same? Explain. (c) If there were air resistance, would the height of ℎ increase, decrease or remain the same? Please explain. (d) Calculate what would be ℎ if the length of the path above the jump point of the ramp (that is, the part above the dashed line according to the figure) were d = 50 ? and the kinetic coefficient of friction ?? = 0.2.
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