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marysya [2.9K]
3 years ago
5

A train travels 100 km east and then 75 km west. What is the magnitude of its displacement?

Physics
1 answer:
tamaranim1 [39]3 years ago
6 0

Answer:

displacement = 100 - 75 = 25 km east

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If the distance between two objects decreased, what would happen to the force of gravity between them?
evablogger [386]

Answer: A- It would increase

Explanation:

According to the law of universal gravitation:

F=G\frac{m_{1}m_{2}}{r^2}  

Where:  

F is the module of the attraction force exerted between both objects

G is the universal gravitation constant.  

m_{1} and m_{2} are the masses of both objects  

r is the distance between both objects

As we can see, the gravity force is directly proportional to the mass of the bodies or objects and inversely proportional to the square of the distance that separates them.

In other words:

<h2>If we decrease the distance between both objects, the gravitational force between them will increase.  </h2>
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Push - The most common form of force is a push through physical contact (like a lawnmower or shopping cart)

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What is the acceleration of a dog that runs from 3 m/s to 6 m/s over a distance of 90m?
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Answer:

solution given:

acceleration (a)=?

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A rifle fires a bullet into a giant slab of butter on a frictionless surface. The bullet penetrates the butter, but while passin
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V= 3.48 m/s

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