Lizzy is tiling a kitchen floor for the first time. She had a tough time at first and placed only 2 tiles the first day. She started to go faster and by the end of day 4, she had placed 32 tiles. She worked at a steady rate after the first day. Use an equation in point-slope form to determine how many days Lizzy took to place all of the 100 tiles needed to finish the floor. Solve the problem using an equation in point-slope form. Lizzy took __ days to place all the tiles.

Step-by-step explanation:

So, as balloon reaches its maximum height i.e. 11 m , its velocity become 0.

Therefore, .

It is given that acceleration due to gravity should be taken as , .(because it direction is down)

Now it is also given that upward direction is positive and downward direction is negative. So velocity should be negative.

Using equation of motion,

  .....eqn 1.

where , displacement = -11 m(because it displace towards down) and

Putting these values in eqn 1 .

But as we know direction of velocity is downward.

Therefore,

where negative sign indicates its direction is downward.