According to Newton’s Law of gravity, which of the following is inversely related to the square of the distance from earth?
2 answers:
Answer:
B. Weight
Explanation:
If you look at my crude drawing of two bodies attracted by each other (hey that's gravity, not love!) and to Newton's law of gravity:
For this to work we have to assume that the Forces are equal and the whole system is in equilibrium.
Now if we take a look at the picture, r is the distance between the two bodies, G is the gravitational constant, and m is the mass either of body 1 or 2, so, if we increase the distance, the force of gravity will decrease by the square root of that unit, because it is the denominator of the fraction.
Now emphasis on "Force of Gravity" Force is the only factor inversely proportionate to the square root of the distance, and the only answer that is actually a Force from the options is weight (m*g).
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Answer:
7.75m/s or
Explanation:
m = 1.5kg
u= 10m/s
s = 2m
a =
v = ?
acceleration due to gravity is negative when an object is going up because the force of gravity reduces the speed of the object
using the formula ;
since the object is moving upwards (negative acceleration)
= 100 - 2(10)(2)
100 - 40
= 60
v =
= 7.75m/s
- The motion of a ball falling through the atmosphere, or a model rocket being launched up into the atmosphere are both excellent examples of Newton’s 1st law of motion.
- Riding a bicycle is a good example of Newton’s 2nd law of motion.In this example, the bicycle is the mass. The leg muscles pushing on the pedals of the bicycle is the force.
- You hit a wall with a certain amount of force, and the wall returns that same amount of force. This is an example of Newton’s 3rd law of motion