Which of the following statements is true for the acceleration of the projectile (of the previous question)?Group of answer choicesIt is zero in horizontal and g downward in vertical directionIt is g downward in both horizontal and vertical directionsIt is g downward in horizontal direction and zero in vertical directionIt is zero in horizontal and g upward in vertical directionIt is zero in both horizontal and vertical directions
Question
Which of the following statements is true for the acceleration of the projectile (of the previous question)?Group of answer choicesIt is zero in horizontal and g downward in vertical directionIt is g downward in both horizontal and vertical directionsIt is g downward in horizontal direction and zero in vertical directionIt is zero in horizontal and g upward in vertical directionIt is zero in both horizontal and vertical directions
Solution
The correct statement is: "It is zero in horizontal and g downward in vertical direction".
Here's why:
A projectile motion is a form of motion experienced by an object or particle that is thrown near the Earth's surface and moves along a curved path under the action of gravity only. This path is a parabola.
The acceleration of the projectile is the rate at which its velocity changes. In projectile motion, the only acceleration acting on the projectile is due to gravity, which acts downward.
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In the horizontal direction, there is no change in velocity (assuming no air resistance), so the acceleration is zero.
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In the vertical direction, the velocity of the projectile is constantly changing due to the force of gravity. This force causes the projectile to decelerate on the way up and accelerate on the way down. This acceleration is equal to g (the acceleration due to gravity) and is directed downward.
So, the correct statement is: "It is zero in horizontal and g downward in vertical direction".
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