a(n) unblanced force must act on the object
Move (or change direction/speed if it was already moving).
Forces can change the way the body is moving. Speed it up, slow it down, change its direction.. it depends if the body is in equilibrium or not and what forces are already in play
The answer is force because Force is needed to change the direction of a moving mass.
i dont now
This is one definition of acceleration (including deceleration) - any change in the speed of motion of a moving object, or in the direction of its motion. Motion is a vector value with both speed and direction.
Maybe, maybe not. Forces don't happen because you're moving ... forces are what cause you to move. If there are no forces acting on you, then you keep moving whichever way you're moving, and your speed or direction don't change. If there are forces acting on you, then your speed and/or direction can change. If the force is in the same direction that you're already moving, you'll move faster (accelerate). If the force is in the direction opposite to the direction you're moving, then your speed will decrease. Does any of this sound surprising ???
Move (or change direction/speed if it was already moving).
Forces can change the way the body is moving. Speed it up, slow it down, change its direction.. it depends if the body is in equilibrium or not and what forces are already in play
acceleration in a direction that is not parallel to the direction you are moving
The answer is force because Force is needed to change the direction of a moving mass.
When a moving object is pushed in the direction of its motion the speed of the object increases
Speed or direction or both.
i dont now
Strictly you should ask whether a force can change the direction a body is moving in. The answer is yes.
This is one definition of acceleration (including deceleration) - any change in the speed of motion of a moving object, or in the direction of its motion. Motion is a vector value with both speed and direction.
It can change its speed or direction.
Force changes either the speed or the direction of motion, or both.