Two different metal strips, P and Q, are joined together. When heated, strip P expands more than strip Q. In which direction will the combined strip bend?
Show Worked Solution
Worked Solution
Step 1: Strip P becomes longer than Q.
Step 2: To accommodate the extra length while remaining joined, the longer strip must be on the outer curve.
Step 3: This causes the strip to bend towards the shorter side (Q).
Correct answer: It will bend towards strip Q.
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