Have your brake pads checked. If the squeaking sound stop when you apply the brakes it may be your brake pad wear indicators rubbing the rotors to warn you to have your brake pads replaced. If you ignore it damage will result when the rotors and metal brake pad backing or rivets rub after the brake pad linings are worn away.
I had this happen. It was the wheel bearing. It starts off as a faint whine, but over time as the bearing gets worse it becomes a squeal at highway speeds and a squeak at low speeds. If squeaking at low speeds the bearing is on its last legs and total failure is imminent probably causing more expensive damage and repair.
A rocket's speed at launch is typically zero, as it starts from a stationary position on the ground. The rocket gradually accelerates as it is propelled by its engines, reaching higher speeds as it ascends into space.
The motion of a passenger leaning backward when a bus starts to move is an example of inertia. The passenger's body tends to remain stationary due to its inertia when the bus accelerates forward, causing the passenger to lean in the opposite direction.
When it starts cracking(squeaking).
When an elevator starts or stops, there is a change in acceleration which causes a shift in forces acting on your body. This sudden change can make you feel a jerk as your body adjusts to the new motion. It's similar to the sensation you feel when a car accelerates or decelerates quickly.
The force that holds you to a sled when it starts moving is friction between your body and the sled, as well as the force of gravity acting on you downwards. As the sled accelerates, friction between your body and the sled helps keep you in place and in motion together.
It probably wants something like food or new bedding. It may be in pain. If not it is probably just squeaking. I mean not even WE can be mute forever!
Motion which starts and stops regularly.
Roller coasters are variable motion. Something that has variable motion when they have different distances and speeds in an equal period of time. Going uphill, roller coasters are sort of slow but going downhill, the roller coaster starts to accelerate. The roller coaster takes the same track every time and only goes through it once so, it has equal time periods. By traveling at 2 different speeds during equal time periods, you have variable motion.
Anything in motion has kinetic energy. KE=1/2 m v^2 The ball starts with potential energy due to its height above the ground. The energy is converted to kinetic energy as the object accelerates.
If your guinea pig starts to get crusty eyes or isn't squeaking take it to the vet!
Fishing tends to start out slow, then accelerates quickly through the month of August.