If it sounds like a humming that is like: mmmMM...MMMmmm...MMMmMmm...
then it may be that your AC is on or that you need to raise your idle speed. It may also be that your car is quiet because of the low accel that you can hear your muffler making that noise.
no but its most likely your catalitic converter get under the car and bang on the cat it will most likely rattle the inside is broke
It would make it go faster.
because the gears are grinding together if its an old car it will make a louder crack sound
There is only acceleration if the car's velocity changes. If it moves at a constant velocity, then there is no acceleration.
There is no sound if they are in good working order.
The point of a car amplifier is the make music sound better, so in most cases all amplifier make music sound better.
vroom vroom
No, if a car is slowing down, its acceleration is negative. Acceleration is defined as the rate of change of velocity, so if the car's velocity is decreasing, its acceleration is in the opposite direction.
What is a "flapping sound" Birds?
The car with the highest acceleration capability in the table is the one with the fastest acceleration time.
It is good of a car has a slow acceleration rate. This means that the car will probably be great on gas.
Usually it'll be a grinding sound.