Trajectory Under Constant Acceleration – Rankers Physics

Graphs of Motion: Practice Problem & Solution

Assertion (A): Trajectory of an object moving under a constant acceleration must be 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 Explained:

To solve this problem, we apply the core principles of Graphs of Motion. Understanding the underlying formula is key to arriving at the correct answer below:

Assertion (A) is false; under constant acceleration, the trajectory can be a parabola (projectile motion) or a straight line depending on initial velocity. Reason (R) is false; the trajectory's shape depends on both initial velocity and acceleration.

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