A Man A Piece Of Can On The Roof Deck Of An Apartment The Can Reaches The Ground For About 0.04 Mins. Identify The Final Velocity Of The Can Before Re

a man a piece of can on the roof deck of an apartment the can reaches the ground for about 0.04 mins. Identify The final velocity of the can before reaches the ground. Identify Also the distance of tgr roofdeck to the ground  

Let:

t = time \\ v = final \: velocity \\ h = height \\ g = gravity

Given:

t = 0.04 \: mins = 2.4 \: seconds \\ g = 9.8 \: m{/} {s}^{2}

Required:

h = {?} \\ v = {?}

Solutions:

v = gt \\ v = (9.8)(2.4) \\ v = 23.52 \: m{/}s \: \\ v = 24 \: m{/}s

h = \frac{1}{2} g {t}^{2} \\ h = \frac{1}{2} (9.8){(2.4)}^{2} \\ h = \frac{1}{2} (56.448) \\ h = 28.224 \\ h = 28 \: m

All answers are following the significant number ruling


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