Question

an object is projected at an angle of elevation of 45°with a velocity of 100 m/s. calculate its range and time of flight

Answer 1

Range = v^2× sin2(angle)/g
= (100)^2*sin2*45/10
=10000/10
=1000m
time = 2vsin(angle)/g
=2*100*sin45/10
=20/√2 s