Physics question! i did this wrong and don’t know how to fix it !

We're talking about an object starting at 127.8 m/s and ending at a complete stop. So in the 'Sub' line, v(final) should be zero.

Everything else looks good, so that one little change should get you there.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

momentum of soft ball three times less than baskey ball