Which one of the following does not accurately describe the universal gravitational law? Question 10 options: A) Gravitational f
2 answers:
Answer:
D is right answer
Explanation:
•Gravitational force directly proportional to product of their masses
•And is inversely proportional to square of distance between them
•Every object in the universe that has mass attracts every other object in the universe that has mass.
THEREFORE OPTION 4 WILL BE THE ANSWER
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Answer:
The air resistance on the skydiver is 68.6 N
Explanation:
When the skydiver is falling down, there are two forces acting on him:
- The force of gravity, of magnitude , in the downward direction (where m is the mass of the skydiver and g is the acceleration due to gravity)
- The air resistance, , in the upward direction
So the net force on the skydiver is:
where
m = 7.0 kg is the mass
According to Newton's second law of motion, the net force on a body is equal to the product between its mass and its acceleration (a):
In this problem, however, the skydiver is moving with constant velocity, so his acceleration is zero:
Therefore the net force is zero:
And so, we have:
And so we can find the magnitude of the air resistance, which is equal to the force of gravity:
1) Answer:
98 N
Explanation:
The weight of an object is given by:
where m is the mass of the object and g is the gravitational acceleration. In this case, m=10 kg, therefore the weight of the lemur is
2) Answer:
87 N
Explanation:
The value of g at the International Space Station is . Therefore, the weight of the lemur on the Space Station will be