Answer:
North of west
Explanation:
Acceleration is the change in velocity over change in time.
a = Δv / Δt
The x component of the acceleration is:
aₓ = (0 − v₁ₓ) / (t₂ − t₁)
aₓ = -v₁ₓ / (t₂ − t₁)
aₓ < 0
The y component of the acceleration is:
aᵧ = (v₂ − v₁ᵧ) / (t₂ − t₁)
aᵧ > 0
Therefore, the acceleration points northwest.
Vincent Hsu’s research shows that Americans tend to full their ideal of self-reliance by (B) rebellion against the social norms. These are quite commonly found throughout each American generations, where counter-culture is a way for them to establish self-reliance.
Though individualism is a value that is an embodiment of American culture back then and now, it is not how Americans establish self-reliance. Nor do they develop personal ideals or confirm to a role model.
Lowering the center of gravity increase stability. Increasing stability is
characterized by a large base support, a centralized center of gravity
projection within the base support, a large body mass and high friction at the
ground interface.
Answer: plane speed is 94.87m/s
Explanation: since the plane move upward in a semicircular path, the acceleration is a centripetal acceleration with radius of 500metre. But the Centripetal acceleration is given as
Centripetal acceleration
= Speed ²/radius
Making speed subject of formula we have,
Speed² = centripetal acceleration*radius
Speed² = 18*500
=9000
Speed =√9000
= 94.87m/s
This question can be solved by using equations of motion.
A. The grapefruit dropped by "3.1 m".
B. The speed of the grapefruit, when it hit the ground was "7.8 m/s".
A.
We will use the second <em>equation of motion</em> here to find out the distance dropped by the grapefruit:
where,
h = height dropped = ?
vi = initial speed = 0 m/s
t = time period = 0.8 s
g = acceleration due to gravity = 9.81 m/s²
Therefore,
<u>h = 3.1 m</u>
<u />
B.
Now, we will use the first <em>equation of motion </em>to find out the final speed:
vf = 0 m/s + (9.81 m/s²)(0.8 s)
<u>vf = 7.8 m/s</u>
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Learn more about <em>equations of motion</em> here:
brainly.com/question/20594939?referrer=searchResults
The attached picture shows the equations of motion in the horizontal and vertical directions.