first we make a U turn and travel towards home in t = 20 s
so the distance of home from initial position is
Now after picking up the book we travel back with speed 20 m/s
so again after t = 20 s the displacement is given as
so the net displacement is given as
so it will be displaced by total displacement 200 m
Answer: They will NOT connect because like poles are facing each other, and like poles repel each other.
Your answer is 20
just take 1,200 divided by 60 [second] :)
A snowball picks up speed as it rolls down the mountain.<em> (D)</em>
Since the description includes acceleration ("picks up speed"), we know that the forces on the snowball must be unbalanced.
Solution :
We know, resistance is given by :
Now, we know mass of wire is given by :
Hence, this is the required solution.
