Answer:
Approximately 
.
Explanation:
Momentum would be conserved since there's no friction on this friend, and all other forces on her are balanced. Therefore:
.
Momentum 
the product of mass 
and velocity 
. That is: 
.
The initial momentum of this friend is 
since she was initially not moving (an initial velocity of 
.)
The initial momentum of the pumpkin would be:
.
Therefore:
.
Rearrange the equation to find an expression for velocity given momentum and mass:
.
Note that the "final momentum of friend and pumpkin" in the previous equation refers to the resultant velocity of the friend with the pumpkin in her hand. Thus, it would necessary to use the combined mass of the friend and the pumpkin 
when calculating the resultant velocity:
.
Answer:
V = 2.64 10⁻⁴ m³, T = 21.85 N
, T = 19.26 N
Explanation:
To calculate the cylinder volume we use the density equation
ρ = m / V
V = m / ρ
ρ = 8.44 g / cm³ (1 kg / 1000g) (10² cm / 1m)³ = 8.44 10³ kg / m³
V = 2.23 / 8.44 10³
V = 2.64 10⁻⁴ m³
We calculate the tension with Newton's second law
In the air
T-W = 0
T = mg
T = 2.23 9.8
T = 21.85 N
In water
In this case we have the push up
T + B -W = 0
T = W -B
The push formula is
B = 
g V
T = m g - g V
T = 2.23 9.8 - 1.00 103 9.8 2.64 10-4
T = 21.85 - 2.5872
T = 19.26 N
But they are ♀️♀️ because ima idk they just are search it up sis
Newton's second law allows finding the answer for the force that attracts the body is 127.4N
Newton's second law indicates that the force that is the interaction between two bodies is directly proportional to the product of the mass and the acceleration.
F = m a
Where the bold letters indicate vectors, F is the force, m the mass, and the acceleration of the body.
When a body is close to the Earth there is an interaction between the body and the planet, we call this interaction weight, it is given by the relationship
W = m g
Where W is the force called weight, m the mass of the body and g the acceleration of the body, which in this case is called the gravity acceleration (g = 9.8 m / s²)
They indicate that the mass of the body is m = 13 kg, let's calculate the weight
W = 13 9.8
W = 127.4 N
In conclusion using Newton's second law we can find the answer for the force that attracts the body is 127.4N
Learn more here:
brainly.com/question/19226427
The total momentum before and after the collision must be conserved.
The total momentum before the collision is:
where m1 and m2 are the masses of the two players, and
and
their initial velocities. Both are considered with positive sign, because the two players are running toward the same direction.
The final momentum is instead
because now the two players are moving together with a total mass of (m1+m2) and final speed vf.
By requiring that the momentum is conserved
we can calculate vf, the post-collision speed:
and the direction is the same as the direction of the players before the collision.
