Question

What brings change in the state of motion of the object?
a).The path of the motion
b).Mass of the object
c).Force acting on the object
d).Density of the object

Answer 1

Hint: According to Newton’s second law of motion, an object will only change its motion when some amount of external force is applied on the body. Balanced forces will not change the motion of the body. Only unbalanced forces will tend to give change to the motion of the body.

Complete answer:
An applied force affects the motion of an object. The applied force could be a push, pull or dragging on an object. The push on the body can come from direct contact, like when objects collide with another one or it could be indirect contact like due to the external magnetic or electric field. The pull seems to come from a field like gravity or magnetism.
Therefore, the correct option is option C which says that the change can be done on an object when a force is applied on it.

Additional information:
The action from a force can cause an object to move or speed up, that is to accelerate, to slow down which means to decelerate, to stop, or to change the direction of motion. As we know, any change in velocity is called acceleration, it can be defined as a force on an object that will result in the acceleration of the object.

Note:
One cannot change the motion of the body by changing the mass of the body, by changing the path of motion or by changing the density of the body. We need to accelerate or decelerate the object to make it move from one place to another. This change can be directly applied or indirectly.