1. pulling tug of war
2. monkey swinging from vine
3. arm wrestle
Answer:
Approximately . (Assuming that this table is level, and that the gravitational field strength is .
Explanation:
Convert the dimensions of this book to standard units:
.
.
Calculate the surface area of this book:
.
Pressure is the ratio between normal force and the area over which this force is applied.
.
Equivalently:
.
In this question, .
It was found that (assuming that the entire side of this book is in contact with the table.
Hence:
.
If that the table is level, this normal force would be equal to the weight of this book:
.
Assuming that the gravitational field strength is . The mass of this book would be:
.
Answer:
8.87 m/s^2
Is the same for both planets
Explanation:
Hello!
The surface gravity can be calculated from Newton's Law of Gravitation and Newton's Second Law :
ma = F =G Mm/r^2
Solving for a:
a = G M/r^2
And the surface graity g = a(R), that is, the surface gravity is equal to the acceleration evaluated at the radius of the planet:
g = G M/R^2
Since G is a constant, we need to evaluate M/R^2 for both to know in which planet the surface gravity is the geratest:
M_u/R_u^2 = 1.323 x 10^11 kg/m^2
M_v/R_v^2 = 1.323 x 10^11 kg/m^2
It turns out that the surface gravity in both planets is the same! which is:
g = G M_u/R_u^2
= ( 6.67408 × 10-11 m^3 / (kg s^2) ) *( 1.323 x 10^11 kg/m^2)
= 8.87 m/s^2
*as you can check on google*
You would feel the same weigth in both planets, however you wil feel lighter in these planets than in earth.
Answer:
Explanation:
Yes she is doing work. With or without the groceries, she is still doing work. She does more work with the groceries than without because Work is defined by F which is defined by mass. The mass increases with the groceries.
The work done is against the force of gravity.
The Newton's second law of motion can be used to determine the why certain players are used certain positions because each player has unique mass and as such exert a unique force.
<h3>
What is Newton's second law?</h3>
Newton's second law of motion states that the force applied to an object is directly proportional to the mass and acceleration of the object.
F = ma
where;
- m is mass of the object
- a is acceleration of the object
Based on Newton's second law of motion, the force exerted by an object increases with increase in the mass of an object.
For example, most defenders in sports usually have large mass which increases the force exert on the opposing team.
Thus, the Newton's second law of motion can be used to determine the why certain players are used certain positions because each player has unique mass and as such exert a unique force.
Learn more about Newton's second law of motion here: brainly.com/question/25545050
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