A golf ball having an initial speed of 50m/s with an angle of 30 degree what is time of flight and range and velocity it which it hits the ground at the end of flight

Answer 1

the speed at the end of flight: initial speed, using conservation of energy.
time flight:
initial vertical velocity=50sin30=25m/s
hf=hi+vi*t-4.9t^2
0=0+t(25-4.9t) solve for time t
range
d=vhorizontal*timeinair=50cos30*t