Things can slow down for many reasons.
Firstly, if your considering a human being, then humans can slow down because of a lack of energy, or they slow down because they are tired and need to rest. Sometimes humans slow down because they don't want to speed up.
Secondly, considering machines. Machines somtimes slow down because their batteries are wasted, or you turn them off. Another reason could ba a machine like a helicopter, it slows down because it needs to land.
Thirdly, lots of things slowd own because it's not safe to go faster or even stay at the speed they were at earlier.
the motion that makes things slow down is friction
A parachute
Friction is a force that will slow things down.
resistance is use to slow down and amplify can use for speed up the cell division
speed things up
I do not no but you do
the motion that makes things slow down is friction
yes
Yes, things such as longer grass and water on the greens will slow a ball down.
Used to stop and slow down things
A parachute
Friction is a force that will slow things down.
positive acceleration is when things speed up; negative acceleration is when things slow down; and zero acceleration is when things do not speed up or slow down, this is called constant speed, or no change in velocity.
motion
resistance is use to slow down and amplify can use for speed up the cell division
friction and gravity
Probably. If there were such things as zombies.