Question

If x is Horizontal and y is vertically upwards and the top of a tower 40m High is taken as origin equation of trajectory of a projectile is y=40x-4x². which of the following statement is true about the motion (x and y are in metres):
(A) Maximum height above ground is 100m.
(B) Horizontal distance of the point where the projectile has same speed as at the time of projection is 10m.
(C) Distance from the base of the tower where it strikes ground is more than 12m.
(D) Minimum velocity of projectile will be greater than 1m/s..

Answer 1

Answer:

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Explanation:

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