What direction does a tricycle initially move when pulling a rope to the left?

In summary, the tricycle will initially move to the right when the rope is pulled to the left, as the rope is located below the axis of the wheel. This is due to the torque exerted on the wheel and Newton's third law, which explains the direction of the pushing force on the ground. Additionally, the wheel exerts a downwards force (its weight) on the ground, which is met with the ground's normal force.
  • #1
donald1403
16
0
http://img98.imageshack.us/my.php?image=tricyclejz7.jpg

A. If you pull to the left on the rope above, which way does the tricycle initially move?

B. Why? Explain your answer above. (4 key concepts)

p.s for Q A, i believe the tricycle will go backward (to the right) since the rope is located below the axis of wheel.

but for Q B, i don't really know what to answer. it is extra credit point thing due 2morrow Dec 7th, so if sum1 could just tell me the answer, it will be helpful to me.

thx
soe
 
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  • #2
As the wheel rotates around its point of contact with the ground pushes horizontally on the ground due to the torque exerted on the wheel. In which horizontal direction will the wheel push on the ground? How does Newton's third law come into play here concerning this pushing force?

We find a similar situation concerning the downwards force (its weight) that the wheel exerts on the ground. The ground responds with the normal force.
 
  • #3
thanks andrevdh... i got full extra credit points for that.. really appreciate it..

donald1403:smile:
 

1. How does the rotation of a tricycle wheel affect its stability?

The rotation of a tricycle wheel plays a crucial role in maintaining stability. When the wheel rotates, it creates a gyroscopic effect that helps to keep the tricycle upright. This effect is similar to how a spinning top stays balanced. As the wheel rotates, it also creates angular momentum, which helps to counteract any external forces that may cause the tricycle to tip over.

2. What factors affect the rate of rotation for a tricycle wheel?

The rate of rotation for a tricycle wheel can be influenced by several factors, including the size and weight of the wheel, the speed at which the tricycle is moving, and the surface it is riding on. Additionally, the air resistance and friction on the wheel can also impact its rotation rate.

3. How does the type of terrain affect the rotation of a tricycle wheel?

The type of terrain can have a significant impact on the rotation of a tricycle wheel. On smooth surfaces, such as pavement, the wheel can rotate more freely and at a faster rate, resulting in smoother and easier movement. However, on rough or uneven terrain, the wheel may encounter more resistance, causing it to rotate slower and making it more difficult to move the tricycle.

4. Can the direction of rotation for a tricycle wheel be reversed?

Yes, the direction of rotation for a tricycle wheel can be reversed. This can be achieved by changing the direction of the pedaling motion. When the pedals are turned in the opposite direction, the wheel will also rotate in the opposite direction.

5. How does the rotation of a tricycle wheel impact its speed?

The rotation of a tricycle wheel is directly linked to its speed. As the wheel rotates faster, the tricycle will also move at a higher speed. This is because the rotation of the wheel creates kinetic energy, which is transferred to the tricycle and propels it forward.

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