Answer:
Approximately 
.
Explanation:
By the Impulse-Momentum Theorem, the change in this woman's momentum will be equal to the impulse that is applied to her.
The momentum 
of an object is equal to the product of its mass 
and velocity 
. That is: 
.
Let 
and 
represent the velocity of the woman before and after the landing. Let represent the woman's mass.
- The woman's momentum before the landing would be
. - The woman's momentum after the landing would be
.
Therefore, the change in this woman's momentum would be:
.
On the other hand, impulse is equal to force multiplied by the duration of the force. Let 
represent the average force on the woman. The impulse on her during the landing would be 
.
Apply the Impulse-Momentum Theorem.
- Impulse:
. - Change in momentum:
.
Impulse is equal to the change in momentum:
.
After landing, the woman comes to a stop. Her velocity would become zero. Therefore, 
.
.
Correct question:
Manny walked a total of 3 miles. The reference point used to calculate the total distance that he walked was the same as the ending point. Which describes where Manny most likely walked?
a. from the bottom of a hill to the top
b. on a circular nature trail
c. on a sidewalk from his house to the mall
d. from the beginning of a straight track to the end
Answer:
b. on a circular nature trail
Explanation:
As it is mentioned that Manny that his reference point from where she started is same as ending point meaning that she moved in a circular path making point B correct answer.
Well it breaks it away from rain or earthqukes depends but then depostion takes the rocks away and a delta takes it into the ocean
Answer:
Because of the presence of air resistance
Explanation:
When an object is in free fall, ideally there is only one force acting on it:
- The force of gravity, W = mg, that pushes the object downward (m= mass of the object, g = acceleration of gravity)
However, this is true only in absence of air (so, in a vacuum). When air is present, it exerts a frictional force on the object (called air resistance) with upward direction (opposite to the motion of free fall) and whose magnitude is proportional to the speed of the object.
Therefore, it turns out that as the object falls, its speed increases, and therefore the air resistance acting against it increases too; as a result, the at some point the air resistance becomes equal (in magnitude) to the force of gravity: when this happens, the net acceleration of the object becomes zero, and so the speed of the object does not increase anymore. This speed reached by the object is called terminal velocity.
