In: Physics
A tugboat tows a ship with a constant force of magnitude
F1. The increase in the ship's speed during a
10 s interval is 4 km/h. When a second tugboat applies an
additional constant force of magnitude F2 in
the same direction, the speed increases by 16 km/h during a 10 s
interval. How do the magnitudes of F1 and
F2 compare? (Neglect the effects of water
resistance and air resistance.)
F2 = ? F1
We know
Case 1: F1 is applied
-----------
Net Force=Mass*acceleration
-----------(1)
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Case 2 :F1 +F2 is applied
-----------
Net Force=Mass*acceleration
------------(2)
===================
From(1) and (2)
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ANSWER:
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