Answer:

Explanation:
<u>Rotational Motion
</u>
An object is said to have rotational motion is it moves at the same distance to a fixed point called the center. The distance is called radio and the number of revolutions (or radians) it makes over time is called angular speed. Knowing the angle
it makes in a certain time t, the angular speed is

If we wanted to know the time it takes to describe some angle, we solve for t
![\displaystyle t=\frac{\theta}{w}..........[1]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20t%3D%5Cfrac%7B%5Ctheta%7D%7Bw%7D..........%5B1%5D)
Two rotating paper disks are mounted at a distance of x= 81 cm = 0.81 m. If we knew the time the bullet take from one to the other, we could determine the speed of the bullet
![\displaystyle v=\frac{x}{t}.............[2]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20v%3D%5Cfrac%7Bx%7D%7Bt%7D.............%5B2%5D)
We can determine the time taken between the disks knowing their angular speed and the angle formed in the interval. Replacing the time from [1] into [2]


We have the values


Thus


So in calculating this one its is really hard to explain how i get it on solve it but you must consider this factors that i give in getting the answer. First is the distance cover by the ball when it is hit by the club, Second is you must estimate both of those data when it is in the moon and in the earth whre the gravity of the earth is 9.8m/s^2 so by calculating the Gravity of the moon or gMoon is equal 1.74m/s^2
C is not mechanical weathering. It is chemical weathering.