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1 ) A stone dropped from a bridge strikes the water 2.2 seconds later. how high is the bridge above the water?

1 ) A stone dropped from a bridge strikes the water 2.2 seconds later. how high is the bridge above the water?

2) An apple is dropped from a window 20m above the ground. a) how long does it take the apple to reach the ground? b) what is its final speed?

3) a stone thrown upward reaches its highest point 2.2 seconds later

a)how high di it go?

b) what was its inital speed?

please use formulas to answer wit explanations

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Hi great dear accept your complete solution... View the full answer

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Step by step solution... (1) Height =ut+1/2 at^2
= 0 +(1/2)*9.8*(2.2)^2
= 23.716 m (2) (a) s=(1/2) a*t^2
20=1/2 * 9.8t^2
t=2.02 s
(b) v=at
=9.8*2.02
=19.8 m/s (3)
(a) V² = U² +2as
0 = (22)² -...

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