accelerator cable
Acceleration is caused by gravity or an outside force on the object.
Roughly speaking, acceleration is caused by destroying the balance of forces on an object.
speed that is used.
Newton's Second Law of Acceleration says it is gravity.
A sticking thermostat is caused by wear. The only option is to replace the thermostat.
acceleration
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Acceleration is caused by unbalanced forces. They may or may not be opposite in direction. If they are, they must be different in size.
Only one thing can be acceleration; the changing velocity of any given object. That's what acceleration is. Acceleration is caused by a net force on the object.
Gravity
Yes you do, it it is caused by the sweat sticking to your cloths.
That means that the acceleration of an object is caused by the force of gravity acting on the object.