in which circumstance is displacement the same as distance traveled?

a an object travels in a straight line, then comes to rest

b an object moves left and right as it travels forward

c an object returns to its initial point of departure

d an object makes a right-hand turn midway in its trajectory

Option A

Explanation:

The displacement in simple term can be defined as the difference between the final and initial position of an object. However, distance is the total length of the movement.  

For example - If an object move from point A to B which is a distance of 100 meters, then returns back to point A, and then the total distance traveled is equal to 200 meters while the displacement is zero.  

Of all the given options, the distance and displacement is same for option A as the object travels from one to other and stops their only.  

Hence, option A is correct

the form of energy changes and the total energy increases0l

the sphincter muscles at the end of the digestive tract is the anus.