Assertion: Time of flight of a projectile is equal to twice the time taken to attain the max height Reason: At the highest point of the trajectory, the projectile comes to rest and then begins to falls vertically downward under the effect of gravity

Assertion is true but reason is incorrect. This is because , at the highest point, only the vertical component is 0, not the horizontal component and hence there is a net velocity. Therefore reason is false

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akshras682 akshras682 · Answer 2 · 2024-06-16T22:54:55+05:30

Answer:

assertion is true and reason is the correct explanation of assertion

Explanation:

time of flight= 2usinx/g

and time to attain maximum height is= usinx/g

the reason for it be twice that of time to maximum height is, as it approaches the height the velocity decreases at the rate of g and at Max heigh it doesn't have left any velocity to go up further since the gravity is downward it starts falling at the same acceleration but first it was deaccelerating but now it's accelerating since the vertical displacement is same so it will hit the ground with same initial vertical velocity but opposite in direction then the time would also be same time to ascend and descend is same then total time would be twice of time of ascend/descend

Assertion: Time of flight of a projectile is equal to twice the time taken to attain the max height Reason: At the highest point of the trajectory, the projectile comes to rest and then begins to falls vertically downward under the effect of gravity​

Answer :

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Assertion: Time of flight of a projectile is equal to twice the time taken to attain the max height Reason: At the highest point of the trajectory, the projectile comes to rest and then begins to falls vertically downward under the effect of gravity