Answer:
Part a)

Part b)

Explanation:
Two sleds are connected by a rope
mass of each sled is given as

now we know that dog exert pulling force on the rope connected to first sled

Part a)
By newton's first law we know that




Part b)
As we know that force between two ropes will pull the sled behind
so we will have



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accept the flow of electrons.resist the flow of electrons.accept the flow of protons.resist the flow of protons.It is one of these </span>
Answer:
PE = 882 J
Explanation:
Through the International System we know that the gravity of the earth is 9.8 m/s², so...
Data:
- m = 45 kg
- g = 9.8 m/s²
- h = 2 m
- PE = ?
Formula:
Replace and solve:
The potential energy of the sled is <u>882 Joules</u>.
Greetings.
If you, for example, poured it onto a wide cup with a volume equal to the total volume of the sand particles, the sand would not spread out to fill the container but would bunch up together in the middle.