In a tug of war, Team A pulls left with 450 N and Team B pulls right with 410 N…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
In a tug of war, Team A pulls left with and Team B pulls right with .
- What is the net force on the rope?
- Which team is winning?
- A new player joins Team B and adds . What is the net force now?
Need a reminder? The key ideaShow
The net force adds all the forces with their directions. If it is zero the forces are balanced and the motion does not change; if not, they are unbalanced and the object speeds up, slows down or turns. Forces at right angles are added separately.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) to the left.
Step 2. (b) Team A: the rope moves their way.
Step 3. (c) Team B pulls : to the right.
Answer: left, Team A; then right, and Team B starts to win.
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