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Forces question

  • Thread starter lou429
  • Start date
  • #1
1
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A crate of books is to be put on a truck with
the help of some planks sloping up at 33◦. The
mass of the crate is 100 kg, and the coefficient
of sliding friction between it and the planks is
0.4. You and your friends push horizontally
with a force ~F .
The acceleration of gravity is 9.81 m/s2 .
Once the crate has started to move, how
large must F be in order to keep the crate
moving at constant speed?
Answer in units of kN.
 

Answers and Replies

  • #2
378
2
Show your work.
 

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