For projectile motion which of the following statements is...

For projectile motion, which of the following statements is CORRECT? a. The direction of the projectile's velocity does not change with time. b. The projectile's acceleration flips its direction after reaching the top of its trajectory. c. The range of the projectile only depends on its initial velocity. d. The final velocity of the projectile only depends on its initial velocity. e. The projectile's maximum height will be determined by the vertical component of its initial velocity.

Transcript

00:01 In this question, you are given with a projectile motion and you have to choose the correct statement regarding the projectile motion.

00:11 Let's check for the statement one whether it is correct or not.

00:14 The statement one is the direction is talking about the direction of projectile motion.

00:27 Direction of projectile motion.

00:42 So we know in projectile the direction of velocity is all but tentative.

00:49 Tangential to the path, okay? direction of projectile velocity, let's see this is projectile motion.

01:01 So direction of projectile velocity is always tangential to its motion, okay? tangent to path.

01:10 So it changes with time, okay? so first option is false, false, okay? now let's check the second option, which states that the projectile velocity is perpendicular to its acceleration as it reaches the top of its trajectory okay so when a projectile reaches the top of its trajectory this is the top of the trajectory okay and this is the velocity vector at the top of the trajectory vertical component this is the vertical component of velocity vector is equal to zero only horizontal component exist and for the acceleration in whole path is g downward okay acceleration in the projectile is always g downward so here is also g downward so it means this is equal to 90 degree and the second option is true true it means projectile velocity is perpendicular to its acceleration as it reaches the top of the trajectory.

02:41 Okay, let's check the second third option.

02:46 Okay, third one is the projectile acceleration flips its direction after reaching the top of its trajectory...

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