We wish to know if we can conclude that the mean daily caloric intake in the adult rural population of a developing country is less than 200. A sample of 50 had a mean of 102 anda standard deviation of 125. Let level of significance 0.05
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Total height =100m=S1+S2
Using equation of motion,
For first ball
S1=ut+21gt2
where,
S= Distance
u= Initial velocity
g= acceleration due to gravity
t= time
S1=0−21gt2
For second ball
S2=40t+21gt2
S2=40t−S1 ....(i)
Putting the value of S1 in equation (i)
S2+S1=40t
100=40t
t=2.5sec
Hence, two balls will meet after 2.5se
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