1 con lắc lò xo có khối lượng m, độ cứng k=45N/m. Cho con lắc dao động điều hòa với biên độ A= 20cm thì a cực đại=18m/s2. Xác định khối lượng m

explanation:

to push or pull an object in a certain direction is known as force. a force in moving an object from one place to another.

force depends on the mass of an object. so, more is the mass of an object more will be the force required to move the object.

thus, we can conclude that the use of force to move an object is push or pull.

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.