why does mud fly off a rapidly turning wheel?
154366
because when an object moved in a circulatory movement it needs a centrifigal force to stay on a circle path when it loses that force it will be kicked off the circle path so the mud needs force to remain attached to the wheel and travel in a circle path and since the attachment force between the wheels and mud are not enough to make a centifigal force to keep the mud in circle path , the mud will be kicked off
886324
Think of it like this, if you have a car on ice, there is no friction. The wheels will spin, but the car won't go anywhere. If you have a car on pavement, the wheels spin and the car moves. This is  because the friction where the wheel is touching the pavement doesn't move. Instead,the wheel to rotates and the next part of the wheel touches the pavement and 'doesn't move'.\n\nHope that makes sense. I was never all that good with physics.
779727
combustion? your question i super vague. the drive shaft applying torque created by the engine to the wheels which turn making the car move? you might want to be more specific. and if you look at wikipedia.org under combustion engine you might find what your looking for
162299
It´s because your eye doesn´t receive light in a continuos way. Our eyes are "taking pictures" several times a second, and we have the perception of movement. When a wheel turns fast, suddenly the speed sinchronizes with your eye so first it looks as it is stopping, then it goes backwards, and then again seems to turn forwards.\nThis happens when the speed is changing.
397549
no, the whole point of "drifting" is to set up your suspension for oversteer, and then controling the drift with the throttle not the steering wheel. when you think about your already asking the front whhels on FWD car to; stop, go, and handle cornering. with more power to the front wheels, when you accelerate out of a corner a FWD car will just understeer A LOT.
681130
They will tend to rotate in a circular path. Small tyre in the inner circle and bigger tyre in the outer circle.\n\nThat is the natural motion. But if one makes it move in a straight line, it will make the bigger tyre to skid as well as rotate;the excess path is being nullified by the skidding.
649589
it's to emulate the effect of cycling on a real bike. IF there was no weight to cycle against, your legs could spin round and round very fast with no resistance. Cycling against the flywheel, it's tough to start it spinning and get up to speed, like on a real bike, and to keep it going round at speed takes effort, like a real bike.
162253
When you turn a sharp corner in your car (say going around and round a circle) the rear wheels must travel "different" distances.  The inner wheel is on a smaller circle than the outer wheel.  If both wheels were connected to a fixed axle and were locked to rotate together, one or both wheels would have to slip on the pavement to make up for the different lengths in their paths.  This would increase tire wear and affect handling and braking.\n\nThe differential gear system allows the two wheels to move at different rotary speeds while both still receive power from the engine through the drive shaft.  See the link for details and a good illustration.  BTW, this is not a problem for the front wheels which are used for steering because they rotate independently and are not driven by a fixed axle and drive shaft (except in front-wheel drive!).
790885
because its turning with a lot of force
594819
Well it depends on several things.\n\nIf you mean how fast it chews down through the earth, on a mud rig 60ft or so every hour.  I dont know about air rigs, never worked on one of those.\n\nNow if you mean how fast the bit is actually spining, I'm not sure...I just know it it no fun to change
210278
spin around really fast
104267
you need tight trucks to retain control at high speeds
928098
It's an inertial force which arises in this case from the conservation of angular momentum.  When the disc is rolling, it has angular momentum with a certain magnitude, and a particular direction - it is turning around a horizontal axis.  For it to come to rest, the angular momentum has to be transferred by friction to the earth, and if you change the axis, that is equivalent to adding some angular momentum around a different axis, so that added momentum has to be dissipated too.  The forces against your feet were caused by the disc trying to transfer some its angular momentum to you, probably not very effectively.
1160097
While pedaling bicycle ,our muscular energy get transferred to the rear wheel of bicycle with the help of axle . (muscular energy changes to rotational energy which get transferred to rear wheel with the help of torque produced by our force ). As the rear wheel moves friction comes into play and interestingly only rolling friction opposes motion of wheel whereas kinetic friction supports it .\n\nAs the cycle and driver both forms a system ,so the force applied by driver is actually applied on ground (not on cycle) and in the reaction ground pushes the system(driver and cycle ) forward . \n\nThe cause of motion of rear wheel is your transfer of muscular energy to it and as well as kinetic friction ,but the front wheel moves only because of kinetic friction.\n\nwhen U will stop pedaling then also cycle moves forward for some distance because of kinetic friction .
440213
That is because the fly IS moving at the speed at which the vehicle is moving. By the way, it DOES NOT hover at the same place. Suppose the fly is a little fast than the car , then it appears to the fly that the wind-shield is moving towards it and it then adjusts it's speed to remain in the same place( if it chooses to). In the same way in all other cases, it modifies it's speed.\n Someone above pointed to inertia. Remember inertia only acts if the fly or any other object is in contact with the moving object. Otherwise it does'nt come into picture.
197291
to get the offset on the crown wheel inside the diff to turn.Thus causing the axle shaft to spin.
47938
The first answer is correct. I think for the second answer, the questioner would probably be wondering...well, if the helicopter takes off with the same velocity as the earth, since the heli is now hovering and the earth keeps on turning, why doesn't the earth spin past the helicopter...\n\nAnd that is simply because the atmosphere is turning around with the heli, like the first answer stated.\n\nJust wanted to elaborate with another example. A fly takes off from the dashboard of a speeding car with its windows closed. Does the fly stay in air or, since the fly is now seperated from the car, does the car rush forward, making it seem like the fly is hurtled to the back of the car?\n\nEven in this case, the air inside the car is being brought along with the car at the same speed. Therefore, the speed of the fly relative to the car will always be 0.