gravity (up to down)
friction
I think this question is not phrased very well. Any force can change objects velocity (speed+direction). If fact that is the definition of the force - F=ma any force, by definition itself, can change objects velocity. Maybe you meant what force can change objects direction of motion? In that case - any force that has a different direction (not the same as direction of motion) Any force can change an object's motion.
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
The push or pull action or force on an object causes change in position of an object
A basic physics answer for this is that a net force (or unbalanced force) will cause an object to accelerate, that is, cause the object to change its speed and/or direction.
If a net force acts at an angle to the direction an object is moving, the object will follow a curved path. This is because the force causes both a change in the object's speed and its direction. The object will move in the direction of the net force, but its trajectory will be curved due to the combination of the force and the object's initial velocity.
A force.
gravity (up to down) friction
Force, which causes acceleration
I think this question is not phrased very well. Any force can change objects velocity (speed+direction). If fact that is the definition of the force - F=ma any force, by definition itself, can change objects velocity. Maybe you meant what force can change objects direction of motion? In that case - any force that has a different direction (not the same as direction of motion) Any force can change an object's motion.
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
The push or pull action or force on an object causes change in position of an object
The force is work.
The transfer of energy that causes an object to move in the direction of the force is called work.
A force acting on the body, along its line of motion.
An object can only slow down, speed up, or change direction, if there is a net force acting on the object.
A basic physics answer for this is that a net force (or unbalanced force) will cause an object to accelerate, that is, cause the object to change its speed and/or direction.
If a net force acts at an angle to the direction an object is moving, the object will follow a curved path. This is because the force causes both a change in the object's speed and its direction. The object will move in the direction of the net force, but its trajectory will be curved due to the combination of the force and the object's initial velocity.