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    (Original post by Lucas_Wojtysiak)
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    They look good to me, except for the last one you should have converted 2.1 MW to 2.1 x 10^6 W rather than 2.1 x 10^9 W, meaning your answer should be 56%
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    (Original post by Lucas_Wojtysiak)
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    For part (b)(i) you have used the force acting at an angle, and not the force acting in the direction of the velocity of the ship, but it is assumed that even if the engine of the ship is operating, the sail still does the same amount of work calculated initially by "pulling" the ship with the same amount of force.
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    Name:  ImageUploadedByStudent Room1445268663.756387.jpg
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    (Original post by swwet aish)
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    You might be able to find it online if you search on google. I think this is a new edition so I'm not sure if you can find it.
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    I did but i couldn't can someone help me ?


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Updated: October 19, 2015
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The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

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