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boat mass is 300kg

accelerates from 0 to 10m/s in 6 seconds

F=ma -> 500N = 300kg *(10m/s/6s) = 112.4045lbf

the contact area between the boat transom and motor is 1000 mm2 = 1.55in2

112.4045lbf/1.55in2=72.51903226 lbs/in2 (PSI)

If my method of solving is correct, is 72.51903226 lbs/in2 (PSI) the maximum force applied and is this the force that is applied at t0?

thank you,

Gil