How much work does a pulling force of 40 N do on the 20 Kg box in pulling it 8 m across the smooth floor at a constant speed. The pulling force is directed at 60 degree above the horizontal

Options :
  1. 160 J
  2. 170 J
  3. 180 J
  4. 234 J


Answer and Explanation :-

Answer: Option 1

Explanation:

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Wouldn't it be nice, for once, to find a world which was at peace with itself. No matter how always those few wanted more than others. Those not satisfied with running their own lives but wishing to have power over the lives of the others. Greedy people. Greedy for wealth, or power or both.
-Garry Douglas Kilworth The Wizard Of Woodworld