A force.
Use the force young pad-wan! An external force is required to start an object in motion from rest.
Force is the only thing that can set a motionless object in motion.
A force is required to change an object's velocity.
If an object is moving, no force is required to keep it moving. Forces are required to CHANGE its motion, for example, to speed it up, or to slow it down.
Force is the only thing that can set a motionless object in motion.
Use the force young pad-wan! An external force is required to start an object in motion from rest.
Use the force young pad-wan! An external force is required to start an object in motion from rest.
No. Force is required for accelerated motion, but not for uniform motion.
Force is the only thing that can set a motionless object in motion.
A force is required to change an object's velocity.
If an object is moving, no force is required to keep it moving. Forces are required to CHANGE its motion, for example, to speed it up, or to slow it down.
Force is the only thing that can set a motionless object in motion.
Inertia.
. The amount of Force needed to make an object change its motion depends on the Mass of the object and the Force required
in the same direction as the object's motion.
Sticking. An extra force is required to start the motion, above the force required to maintain motion.
Newton's 1st law says that an object in motion will stay in motion. So no external force is required. In most instances, there are already external forces, so in real world settings most objects in motion will require a force to stay in motion, because there are other external forces (like friction and gravity) that are already applied to that object.