A fair coin is flipped four times. Find the probability that exactly two of the flips will turn up as heads.
1 answer:
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Answer:
20.425 m
Step-by-step explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²
Now this will the final velocity when it reaches the top of the window
If the upward flight is an exact reverse of the downward flight then the time taken while going down will be 1 second and going up will be 1 second.
Hence total height of the building is 4.11+1.2+15.115 = 20.425 m