79 m/s I belive.
I hope I'm not incorrect!
Answer:
v=32.49 m/s
Explanation:
Given that
Distance ,d= 66 m
Initial speed of the car ,u = 0 m/s
Coefficient of friction ,μ = 0.8
Lets take the total mass of the car = m
The acceleration of the car is given as
a = μ g ( g= 10 m/s² )
Now by putting the values in the above equation we get
a= 0.8 x 10 m/s²
a= 8 m/s²
We know that ,final speed is given as
v²= u ²+ 2 a d
Now putting the value
v²=0² + 2 x 8 x 66
v²= 1056
v=32.49 m/s
Density equals mass divided by volume so the ball the higher amount of mass has more density than the ball with less mass has less density. (The golf ball has more density than the ping pong ball)
the distance between Jupiter and the Sun is 7800 Million kilometers. Option A is correct.
<h3>
What is the Astronomical unit?</h3>
It is a unit of measurement of length for very large distances such as the distance between the sun and a planet. It is denoted as AU.
An astronomical unit is a distance between the earth and the sun.
1 AU = 150 million kilometers.
So, the distance between Jupiter and the Sun is Million km,
Distance = 5.2 x 150 Million kilometers
Distance = 7800 million kilometers
Therefore, the distance between Jupiter and the Sun is 7800 Million kilometers.
Learn more about Astronomical unit
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