An aircraft carrier has a mass of 2.8×10 8 kg . Two tugboats, each with a thrust

Question

An aircraft carrier has a mass of 2.8×108 kg . Two tugboats, each with a thrust of N ) ,are used to help dock the carrier.

Part A

Ignoring the drag of the water (which, in reality, is not a very good approximation), how long will it take the carrier, starting from rest, to reach 6.0 m/s?

An aircraft carrier has a mass of 2.8×108 kg . Two tugboats, each with a thrust of N ) ,are used to help dock the carrier.

Part A

Ignoring the drag of the water (which, in reality, is not a very good approximation), how long will it take the carrier, starting from rest, to reach 6.0 m/s?

Explanation / Answer

F = ma

F = (2.8 x 108) a

a = F/(2.8 x 108)

Vi = initial speed = 0 m/s

Vf = final speed = 6 m/s

t = time taken

using the equation

Vf = Vi + at

6 = 0 + (F/(2.8 x 108)) t

F t = 16.8 x 108

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