To maintain an automobile in approximately constant acceleration, its engine mus

Question

To maintain an automobile in approximately constant acceleration, its engine must develop power that increases with time. Suppose that in one situation the work done by an engine is given by W= 7000t2+ 40,000t+ 100,000 where the units are SI. The power developed by this engine att= 2 s is Answer A. 3.4 To maintain an automobile in approximately constant acceleration, its engine must develop power that increases with time. Suppose that in one situation the work done by an engine is given by W= 7000t2+ 40,000t+ 100,000 where the units are SI. The power developed by this engine att= 2 s is where the units are SI. The power developed by this engine att= 2 s is 3.4 W= 7000t2+ 40,000t+ 100,000

Explanation / Answer

P = W/t = ((7000*(2^2))+(40000*2)+(100000))/2 = 104000.......Option D

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