<u>Answer</u>
<em>The total displacement of the object is 320 m</em>
<u>Solution-</u>
From the formulas of mechanics,

Where,
s = displacement
u = initial velocity = 0 ( ∵ As the body was in rest in the beginning )
t = time taken = 8 s
a = acceleration = -10 m/s² ( ∵ -ve is because of the downward motion)
Putting all the values,
( ∵ -ve displacement means it is in downwards)
The mean of those sets of numbers are 17.5
Answer:
1. 100 which Is the easier one
2. 5
"15/45" = "1/3"
"45/135" = "1/3"
Answer:
What do you mean? It could be both, in different ways.