200 miles/420 secs = 10/21
350 mile/280 secs = 5/4
(5/4+10/21)/2= 145/168 miles per sec
or .86 miles/sec
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:
Inertia
Explanation:
The term for the tendency is inertia.
<em>The inertia of a body is the tendency of the body to remain unmoved when at rest and the tendency to keep moving when in motion. In other words, it is the tendency of a body to remain in a state of rest or motion. </em>
A static body will remain in a state of perpetual rest if no force acts on it and a moving body will keep moving in the same direction if no force acts on it. The force that needs to be overcome in order to change the state of the object is otherwise known as inertia force.
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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