Trajectory with Constant Acceleration – Rankers Physics
Topic: Kinematics
Subtopic: Ground to Ground Projectile

Trajectory with Constant Acceleration


Assertion (A): Trajectory of an object moving under a constant acceleration is a straight line.
Reason (R): The shape of trajectory depends only on the acceleration.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(A) is true but (R) is false
Both (A) and (R) are false

Solution:

An object under constant acceleration does not always follow a straight line (e.g., projectile motion is parabolic). A straight line occurs only if initial velocity is parallel or anti-parallel to acceleration. So (A) is false. The trajectory shape depends on both initial velocity and acceleration. So (R) is false.

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