A projectile is launched from ground level at an angle of 30 degrees above the horizontal. Neglect air resistance and consider the motion from just after the moment it is launched to just before the moment it lands on the ground. At what point are the velocity and the acceleration perpendicular?

A projectile is launched from ground level at an angle of 30 degrees above the horizontal. Neglect air resistance and consider the motion from just after the moment it is launched to just before the moment it lands on the ground. At what point are the velocity and the acceleration perpendicular?

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Question

At what point are the velocity and the acceleration perpendicular?

Expert Solution

Introduction:

We are given given a projectile motion. We have to find the point where velocity vector or simply velocity is perpendicular to acceleration. The projectile motion is 2D motion. There is only one acceleration acting which is acceleration due to gravity.