A woman does 236 J of work dragging her trash can 24.4 m to
the curb, using a force of 18.9 N.
At what angle was her force
directed?

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be