Laws of motion

A pebble of mass 0.05 kg is thrown vertically upwards. Give the direction
and magnitude of the net force on the pebble,
(a) during its upward motion,
(b) during its downward motion,
(c) at the highest point where it is momentarily at rest. Do your answers
change if the pebble was thrown at an angle of 45° with the horizontal
direction?
Ignore air resistance.