1). Because maintaining an object in motion requires no force, but causing a
non-moving object to move involves acceleration which does require force.
2). Because kinetic friction is generally less than static friction.
The frictional force needed to start an object at rest into motion is the static frictional force. This force must be overcome by an external force before the object can start moving. Once the object is in motion, the kinetic frictional force will oppose its movement.
The force needed to stop a moving object is equal to the object's mass multiplied by its acceleration. This force is generated by applying a force in the opposite direction to the object's motion, causing it to decelerate until it comes to a complete stop.
Yes, frictional force is needed to slow down an object in motion. When an object is moving, friction acts in the opposite direction of its motion, leading to a decrease in its speed until it comes to a stop.
The centripetal force is the force needed to keep an object in circular motion. This force is directed towards the center of the circular path and is responsible for continuously changing the direction of the object's velocity. It depends on the mass of the object, the speed at which it is moving, and the radius of the circular path.
According to Newton's first law of motion, an object in motion will remain in motion unless acted upon by an external force. This means that if no external force is applied to an object, its motion will not change. So, if an object is already moving, it will continue to move at a constant velocity without the need for a force to maintain that motion.
The frictional force needed to start an object at rest into motion is the static frictional force. This force must be overcome by an external force before the object can start moving. Once the object is in motion, the kinetic frictional force will oppose its movement.
The best, purest answer is: Because no force at all is required to keep a moving object moving.
The force needed to stop a moving object is equal to the object's mass multiplied by its acceleration. This force is generated by applying a force in the opposite direction to the object's motion, causing it to decelerate until it comes to a complete stop.
Yes, frictional force is needed to slow down an object in motion. When an object is moving, friction acts in the opposite direction of its motion, leading to a decrease in its speed until it comes to a stop.
The centripetal force is the force needed to keep an object in circular motion. This force is directed towards the center of the circular path and is responsible for continuously changing the direction of the object's velocity. It depends on the mass of the object, the speed at which it is moving, and the radius of the circular path.
An object which is moving doesn't need a force to keep it moving.
According to Newton's first law of motion, an object in motion will remain in motion unless acted upon by an external force. This means that if no external force is applied to an object, its motion will not change. So, if an object is already moving, it will continue to move at a constant velocity without the need for a force to maintain that motion.
The force that makes an object stop moving is typically friction. When an object is in motion, the force of friction between the object and the surface it is moving on acts in the opposite direction of the object's motion, eventually bringing the object to a stop.
The frictional force needed to slow an object in motion depends on various factors such as the object's mass, speed, and the surface it is moving on. This force is generally equal to the product of the coefficient of friction between the object and the surface and the normal force acting on the object. It acts in the direction opposite to the object's motion, causing it to decelerate.
More force is needed to change the motion of a heavy and fast-moving object because of its momentum, which is the product of its mass and velocity. The momentum of an object indicates the amount of force required to change its motion, so heavier objects with higher velocities require more force to change their direction or speed compared to lighter objects moving at slower speeds.
An external force, such as a push or a pull, can start a moving object by overcoming its inertia and setting it in motion. Once the object is in motion, it will continue moving until acted upon by another force.
Yes, a force is needed to set an object into motion according to Newton's first law of motion. An object at rest will remain at rest unless acted upon by a force.