The object m moves forward under the action of a constant force F in the horizontal direction on a smooth plane, and a spring with enough stiffness coefficient is fixed in its forward direction When the object contacts the spring, the a. Slow down immediately b. The external force on the object first decreases and then increases c. After a short period of time, the velocity of the object reaches the maximum and the acceleration is 0 d. When the spring is in the maximum compression, the acceleration of the object is 0 Thanks a lot!

The object m moves forward under the action of a constant force F in the horizontal direction on a smooth plane, and a spring with enough stiffness coefficient is fixed in its forward direction When the object contacts the spring, the a. Slow down immediately b. The external force on the object first decreases and then increases c. After a short period of time, the velocity of the object reaches the maximum and the acceleration is 0 d. When the spring is in the maximum compression, the acceleration of the object is 0 Thanks a lot!

bc
When the spring is compressed to a certain extent, the force is zero and the speed reaches the maximum. Then it begins to decelerate and the spring force continues to increase