Answer:
D. 5.8 cm, 31 degrees South of the West axis
Explanation:
Here we have two vectors:
direction west
direction south
We note that the two vectors are perpendicular, so we can use the Pythagorean's theorem to find the magnitude of their resultant:
The direction can be found as follows:
And according to how we calculated the ratio inside the formula, this angle is measured as south of west.
I'm thinking that the answer may be change of speed.
You might get shocked or electrocuted
Consider the upward direction of motion as positive and downward direction of motion as negative.
a = acceleration due to gravity in downward direction = - 9.81
v₀ = initial velocity of runner in upward direction = 2.0
v = final velocity of runner at the highest point = 0
x = distance by which center of mass of runner rise = ?
Using the kinematics
v² = v²₀ + 2 a x
inserting the values
0² = 2² + 2 (- 9.81) x
x = 0.204 m