Kinematics Question 456
Question: Assertion: In projectile motion, the angle between the instantaneous velocity and acceleration at the highest point is$ 180{}^\circ $ . Reason: At the highest point, velocity of projectile will be in horizontal direction only.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: E
Solution:
At the highest point, vertical component of velocity becomes zero so there will be only horizontal velocity and is perpendicular to the acceleration due to gravity.
