Question

Three friends are moving the furniture around. Mike moves the desk 6 m , by applying a force of 50 N. Janet moves the couch 3 m, by using a force of 35 N, and Juan moves the TV stand 3.8 m, with a force of 60 N . Who has done the least amount of work today, and is buying lunch?

Answer 1

To determine who has done the least amount of work, we can calculate the work done by each friend using the formula:

Work (W) = Force (F) × Distance (d)

Mike:

Force (F) = 50 N

Distance (d) = 6 m

Work (W) = 50 N × 6 m = 300 N·m (Joules)

Janet:

Force (F) = 35 N

Distance (d) = 3 m

Work (W) = 35 N × 3 m = 105 N·m (Joules)

Juan:

Force (F) = 60 N

Distance (d) = 3.8 m

Work (W) = 60 N × 3.8 m = 228 N·m (Joules)

Now, let's compare the amount of work done by each friend:

Mike: 300 N·m

Janet: 105 N·m

Juan: 228 N·m

Janet has done the least amount of work, which is 105 N·m. So, according to the question, Janet has done the least work, and she should buy lunch.