Explanation:
1) Kicking a ball.
2) Capture the ball by hand.
3) Push a car.
Answer:
a) t = 3.6 s
b) d = 23 m
c) v = 13 m/s
Explanation:
Let t be the time the accelerating rider rides
the distance she travels is
d = ½3.6t²
the distance for the other cyclist is
d =3.5(t + 3)
½3.6t² = 3.5(t + 3)
1.8t² - 3.5t - 10.5 = 0
quadratic formula, positive answer
t = (3.5 + √(3.5² - 4(1.8)(-10.5))) / (2(1.8))
t = 3.575786...
d = ½(3.6)(3.575786²) = 23.015...
v = 3.6(3.575786) = 12.8728...
Social-cultural perspective
Explanation:
Social-cultural perspective is a psychological perspective that emphasizes he influence of the social environment on behavior and mental processes.
This perspective is used to understand how the environment shapes the behavior and their mental functioning.
- One of such is that a child born into a society with incidences of crime and drug abuse will most likely adopt that way.
- The theory proposes that we are reflection of our immediate and environment.
- Humans are socials beings and will most definitely be impacted by their environment as they develop and grow.
learn more:
Psychodynamic perspective brainly.com/question/12670845
#learnwithBrainly
<span>Crust: The thin, outer layer of the earth. Less than 1% of the Earth's mass.Made of solid rock, broken into plates.
Mantle: Molten rock on which plates float. Contains 67% of the earth's mass.
<span>
Core: Inner layer of the Earth. Made of both solid and liquid metals.</span></span>
Answer:
e).
Explanation:
Assuming no external forces acting during the instant of the explosion, total momentum must be conserved.
As the object was initially at rest, the initial momentum is zero, which means that after the explosion, total momentum must add to zero too.
Let's call m₁ = 3 kg-piece and m₂= 6 kg-piece.
⇒ m₁*v₁ + m₂*v₂ = 0
⇒ 3kg* v₁ = -6kg*v₂
⇒ 6/3 = 2 = v₁/v₂ ⇒ v₂/v₁ = 1/2 (in magnitude)
v₂ (being the speed of the 6-kg piece) = 1/2 * v₁ (speed of thr 3-kg piece).
So, we conclude in that the statement e) is the one that is true.
