A stone of mass 0.5kg is thrown vertically upwards with a velocity of 10ms

Answer 1

if g = 9.81 m/s^2
v = 10 - 9.81 t
v = 0 at top
t = 10/9.81 = 1.02 seconds upward
h = Hi + Vi t - 4.9 t^2
at top if Hi = 0 at ground
h = 0 + 10 * 1.02 - 4.9*1.02^2 = 10.2 - 5.1 = 5.1 meters high at top