Question

when you go upstairs,you a. do not work at all b.do less work when you walk than when you run c. do more work when you walk than when you run d.do equal amount of work whether you run or walk

Answer 1

Answer:

b) do less work when you walk than when you run

Answer 2

When you go upstairs, you do less work when you walk than when you run.

• Work is given by the formula,

        $W = F * d$

• Here, W is the work done, F is the force applied and d is the displacement of the body.
• The displacement would be the same, while both running and walking up the stairs.
• Although, the force applied would be different.
• Force is given by the formula,

        $F = m * a$

• Here, m is the mass of the body and a is the acceleration produced.
• The acceleration produced while running is higher than while walking.
• Precisely, the work done while running becomes more than the work done while walking.