The number of
Answer to Problem 51E
The raft can support
Explanation of Solution
Given info: The length, width and the thickness of the raft is
Write the expression for the volume of a raft.
Here,
Substitute
Write the expression for the maximum upward force the raft can exert.
Here,
The expression (1) can be elaborated as,
Here,
Substitute
Write the expression for the gravitational force on each person.
Here,
Substitute
Write the expression for the number of persons (
Substitute
Conclusion:
Therefore, the raft can support
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Chapter 5 Solutions
Physical Universe
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