Work

Asked by  | 22nd Mar, 2010, 09:27: PM

Expert Answer:

Please correct the options since they must be numbers with no units.

(a) 0

t = x + 3

x = t - 3

x = t2 - 6t + 9

dx/dt = 2t - 6 and d2x/dt2 = 2, F = ma = 2m

dx = (2t - 6) dt

Work done = Fdx = 2m (2t - 6) dt

Work done = 2m(t2 - 6t) = 0                   

Regards,

Team,

TopperLearning.

Answered by  | 23rd Mar, 2010, 07:10: AM

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