Answer:
204.55
Step-by-step explanation:
1 mile per hour is 0.489 yards per second
1. The function
is a parabola of the form
. The the formula for the axis of symmetry of a parabola is
. We can infer from our function that
and
, so lets replace those values in our formula:
We can conclude that to the left of the line of symmetry the ball is reaching its maximum height, and to the right of the line of symmetry the ball is falling.
2. Lets check how much time the ball takes to reach its maximum height and return to the ground. To do that we are going to set the height equal to zero:
or
or
From our previous point we know that the ball reaches its maximum time at
, which means that <span>
it takes 1.5 seconds to reach the maximum height and 1.5 seconds to fall back to the ground.</span>
Answer:
A. moving forward for 10m at a steady pace of 2m/s
B. moving backwards 8m at a steady pace of 2.67m/s
C. staying in the same spot for 4 seconds
D. moving 9m at a steady pace of 4.5m/s
E. moving 4.5m with an <u><em>average</em></u><em> </em>pace of 1.5m/s
Answer:
Step-by-step explanation:
Given
Girl has traveled 6 km from her house
She has covered of the distance
Suppose the total distance is x