Hi there, I need help for this question.
I assumed d=20
since i cannot use conservation of energy i couldnt solve it. I found the acceleration which is mgsin30=4.9 i put it on the formula v (final velocity)=u(initial)+at^2
when i put this on the formula s=(u+v/2)*t
I got v=14 is that correct ?
I could find h
and i need help for d and e ( i did not understand since I'm not a native english speaker)