What is the final velocity of a 10 kg object that drops from rest and falls for 30 seconds?
1 answer:
You might be interested in
Answer:
The charge on the dust particle is
Explanation:
From the question we are told that
The length is
The width is
The charge is
The mass suspended in mid-air is
Generally the electric field on the carpet is mathematically represented as
Where is the permittivity of free space with value
substituting values
Generally the electric force keeping the dust particle on the air equal to the force of gravity acting on the particles
=>
=>
=>
=>
Answer:
The tension is
Explanation:
The free body diagram of the question is shown on the first uploaded image From the question we are told that
The distance between the two poles is
The mass tied between the two cloth line is
The distance it sags is
The objective of this solution is to obtain the magnitude of the tension on the ends of the clothesline
Now the sum of the forces on the y-axis is zero assuming that the whole system is at equilibrium
And this can be mathematically represented as
To obtain we apply SOHCAHTOH Rule
So
