I think wavelength is the correct answer. Correct me if Im wrong. Hope this helps!
Answer:
Explanation:
given,
location of the ball ⟨7,0,−8⟩
initial velocity of the ball ⟨-11,19,−5⟩
time = 0.4 s
speed of the ball = ?
using Momentum Principle
change in momentum = Force x time
Net force acting in this case will be equal to force due to gravity because air resistance is negligible.
F_net = F_g = ⟨0 ,-9.8 m , 0⟩
now,
hence, the velocity of the ball 0.4 s after being kicked is equal to
The X component of the vector is 11.5 while the Y component is 9.6.
<h3>What are the components of a vector?</h3>
We know that a vector must posses both magnitude and direction. Now the vector could be resolved into the vertical and the horizontal components of the mixture.
In resolving this vector;
X component = 15 cm cos 40 degrees = 11.5
Y component = 15 cm sin 40 degrees = 9.6
Thus the X component of the vector is 11.5 while the Y component is 9.6.
Learn more about vectors:brainly.com/question/13322477
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Potential, if the bow is released kinetic
Answer:
<h3>143.815 N</h3>
Explanation:
when a person is pushing a carton in an inclined plane there is two forces acting against the applied force,
- component of gravity or mgsinθ
the carton goes up ( constant velocity ) only if sum of these two forces becomes equal to applied force
from the question,
weight of the carton,mg = 245 N
angle of incline,θ = 15°
coefficient of friction, μ = 0.340
∵ the applied force, F = mgsinθ + μmgcosθ
= mg ( sinθ + μcosθ)
= 245 ( sin 15° + 0.340 cos 15°)
= 245 ( 0.259 + 0. 328)
= 143.815 N
