Question: show all calculations Problem 3. (a slight modification of Problem SP5 (on page 122) from our textbook) A sled and rider with a total mass

show all calculations

Problem 3. (a slight modification of Problem SP5 (on page 122) from our textbook) A sled and rider with a total mass of 70 kg are perched at the top of a hill, as pictured in the diagram. The top of this hill is 42 m above the low point in the path of the sled. A second hump in the hill is 28 m above this low point. Suppose we also know that approximately 4200 J of work is done against friction as the sled travels between these two points. 42 m 28 m Figure 2. Schematic graph for Problem 3. (a) Will the sled make it to the top of the second hump if no kinetic energy is given to the sled at the start of its motion? Explain. (b) What is the maximum height that the second hump can be in order for the sled to reach the top, assuming that the same work against friction will be involved and that no initial push is provided? Explain

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