Hello everyone, today we had to create a blog post explaining our experiment that my class and I did yesterday.
Aim: Create the land yacht which travels the greatest distance in the shortest time.
Equipment:
- x2 bamboo sticks
- As many newspapers as one needs.
- Tape
- String
- Small trolley
- Cardboard
- Skewers
Method:
- Me and my group started off by combining the bamboo sticks and the small trolley, we did this by placing one of the bamboo sticks up-right onto the trolley frame, and placing the other bamboo stick side-ways in the middle of the up-right one.
- We made sure to secure the sticks with tape but the string works too. And also we secured the up-right stick with tape as well.
- Then my group taped the paper onto the frame, the result should look like a sail, like the ones on a pirate boat.
- Now my group didn’t use the rest of the stuff, so that’s it. (However we decorated it kinda).
Results:

Discussion:
Our wind racer didn’t go that far, but it didn’t come last at least, and my group (Haylee, Emily, and I, also partly Rayan because he helped) had a great time making it and we can take our results from this time to take into consideration for next time (if there is a next time). it made 4.5 meters at a time of 5.37 seconds.
and we can find out the speed by using the formula:
Speed = distance / time
4.5/5.35
=0.83km an hour
In my opinion it was a great activity to showcase the different forces and I would do it again.
What are the forces acting on your wind racer?:
The forces in a wind racer include: Friction (Slows the wind racer down), Weight (The weight of the wind racer), Thrust (a force that pushes an object—in this case the wind racer— forward, by pushing against a fluid like air or water), Support (The support from the sail).
Are they balanced/unbalanced?:
The forces were unbalanced, if they were balanced then the wind racer would not move when the wind blows it.
What is net force and how does this relate to the forces acting on your wind racer?:
For a wind racer, the net force is the result of the wind pushing it forward, balanced against forces like friction and air resistance working against its motion.
What are the strength of forces acting on it at different stages?:
When the wind racer is closer to the leaf blower the main forces that are being used are thrust and support, when it gets further away from it However the main forces are friction and weight.
How do the forces acting on the wind racer affect the motion of the wind racer at different points?:
The friction from the weight made the wind racer slow down, however the leaf blower created thrust and gave the support a big push, positively effecting the wind racer and making it move.
Why do you think results may vary in the class?
In my opinion everyone had a different result because they used different methods to build their wind racers, also I think the way they used the leaf blower also effected it because the closer the leaf blower was, the harder the thrust was, but because of this the wind racer had a chance of falling over.
Conclusion:
How was your wind racer successful/unsuccessful and why?:
As I said, our wind racer wasn’t that successful, but I think the reason why is because we didn’t tape the sticks together properly and it flopped over, but that’s partly Rayans fault because he accidentally pulled the stick out from the trolley.
How could you improve it?:
Adding a stronger base by securing it with tape, also Rayan could’ve standed a bit further back so the force of the leaf blowers force was smaller.





