Question

a) How does a moving wheel have both translational and rotational movement?

b) How does an automatic transmission sense when to change gears? How is this determined in a manual transmission vehicle?

c) If you forget to put the lug nuts on a tire and the tire comes off, what does gyroscopic rotation make the tire do?

d) Why would a moving car continue to drive if it lost a wheel?

e) Why do some vehicles have locking hubs to engage 4 wheel drive?

Answer 1

a) The translation movement is center of mass is moving and here translation and rotation combines to give rolling without slipping. Wheel in circular shape as it has to move backwards ithas to move along the center of mass or there is a cause of slip.

b) When it comes to automatic transmission of gear system. For example, when vehicle to move incline load on engine increase so it will sense the load and change the gear system according load.

c) The gyroscopic rotation makes type to rotate further in the side direction of movement slightly and falls down.

d) It won’t continue to move. Car without all 4 wheels makes unbalance and make car falls on its corner and causes damage to chassis or may engine.

e) Locking hubs reduce mechanical resistance and it is helpful to make tyre so contact and now modern hubs make so functional to make change 4WD no slip of car.