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The force needed is less in water vs land because of the buoyancy in water
The magnitude of the force each hook exerts on the chain is 22.2N.
<h3>Solution:</h3>
Horizontal force on one half of the chain
cos 42° =
sin 42° = 20
= 29.9N
Now,
= 22.2N
To learn more about the magnitude of forces, refer
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Answer:
V=15.46m/s
Explanation:
By making an energy balance:
Initial energy: where K=1100N/m and X=4m
Final energy: where m=60kg and h=2.5m
Work done by friction force: -Ff*X where Ff = 40N and X=4m
The balance will be:
Solving for V:
using g=9.8m/s^2