Three children, each of weight 356 N, make a log raft by lashing together logs of diameter 0.30 m and length 2.00 m. How many logs will be needed to keep them afloat in fresh water? Take the density of the logs to be 800 kg/`m^(3)`

Explanation

To solve the problem of how many logs are needed to keep the raft afloat, we will follow these steps:

### Step 1: Calculate the total weight of the children.
Each child weighs 356 N, and there are 3 children.

\[ \text{Total weight of children} = 3 \times 356 \, \text{N} = 1068 \, \text{N} \]
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