Respuesta :
Force is a push or a pull of an object that causes the object to speed up, slow down, or stay in one place. In other words, a force is what causes an object to move. Friction and gravity are two types of forces that influence how an object moves.
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A push or a pull on an object is known as a force.
Option D.
Explanation:
For example, if we kick a ball the ball moves in the direction of the kick. Here on kicking the ball we apply a force on the ball that made the ball move. So, the motion (push/pull) of an object is due to the force applied on it.
Force is a vector quantity defined by the product mass and acceleration. That is, F=ma. The SI unit is Newton (N).
Velocity is the rate of change of speed of an object.
Acceleration of an object is the rate of change of velocity.