Is acceleration due to gravity always negative

Hint:Recall that a projectile trajectory can be mapped across a suitable coordinate system. The coordinate system that we choose is defined by the coordinate axes that we take.

Usually, we take the x-axis to be the horizontal distance and the y-axis to be the vertical position of the projectile. We know that the acceleration due to gravity always acts downwards. Think about which direction (axis) you’d portray this in the abovementioned coordinate system.

Complete answer:
The question basically deals with a case of projectile motion.

Projectile motion is a form of motion where an object moves in a parabolic path.

Is the acceleration due to gravity on earth positive or negative?

It occurs when there is one force that launches the object after which the only influencing force is gravity. The path that the object follows under this influence of gravity is called projectile trajectory. In most cases for our convenience, we neglect air resistance.

Now, consider a projectile launched as shown in the figure. We have charted out the projectile trajectory in a coordi

when is acceleration of gravity negative

when we take acceleration due to gravity negative