Suppose a bar 1 m long expands .5 cm when heated. By how much will a bar 100 m long of the same material expand when similarly heated?

Question

If each one meter expands a half centimeter, then one hundred meters will expand 100*.5cm. Think on that.

Answer 1

Exp. = 0.5cm/m * 100m = 50 cm.

Answer 2

thank you