A shopper is in a hurry to catch a bargain in a department store. She walks up the escalator, rather than letting it carry her, at a speed of \(1.0 \mathrm{~m} / \mathrm{s}\) relative to the escalator. If the escalator is \(10 \mathrm{~m}\) long and moves at a speed of \(0.50 \mathrm{~m} / \mathrm{s}\), how long does it take for the shopper to get to the next floor?