Two workers wish to place a 190-kg box onto a truck whose flatbed is 1.3 m above
ID: 2194635 • Letter: T
Question
Two workers wish to place a 190-kg box onto a truck whose flatbed is 1.3 m above the ground. Two scenarios are suggested: A) lift the box up 1.3 m, and place it in the truck B) use a ramp that is 5.0 m long to slide the box onto the truck. Neglecting friction, in which of the two scenarios do the individuals do less work? Answer Scenario A. Scenario B. Same amount of work done in each. Not enough information given. In which, if either, of the two scenarios in question #2 did the individuals use less force? Answer Scenario A. Scenario B. Same amount of force used in each. Not enough information given.Explanation / Answer
w = 190*9.8*1.3 = 2420.6 N
w = 190*9.8*sin*5 = 190*9.8*1.3/5*5 = 2420.6
a) work is same
b)force is less in second case
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