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 people was thrown at an angle of `45^(@)` with the horizontal direction ?
Ignore air resistance .