1.

I : A particle is projected vertically upward its heighth at time t is given by h=60t -16t^2. The velocity at which it hits the ground is 60 units /sec. II : A stone is thrown up vertically and the height h reached in time t given by h=80t -16t^2. The stone reaches the maximum height in 5/2 secs.

Answer»

only I is TRUE
only II is true
both I and II are true
NEITHER I nor II true

Answer :C


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