Question

During the course of trajectory the horizontal component of the velocity is;
A) constant
B) increasing
C) decreasing
D) negative

Answer 1

im not 100 percent sure but i think its a

Answer 2

The horizontal component of the velocity remains constant in a trajectory course.

Answer: A

Explanation:

The trajectory path is formed due to the gravitational pull acting on the object thrown from some point either upward or downward.

As it is known that the velocity is divided into horizontal and vertical component, the vertical component of the velocity of the object thrown will be mainly influenced by the gravitational pull as it acting in vertical direction only.

So the vertical component of the object following a trajectory path will be changing at a rate of 9.8 m/s2 which is the acceleration due to gravity.

On the other hand, the horizontal component of the velocity will remain constant in order to maintain the law of conservation of energy.