Question

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

Answer 1

Range = u^2 Sin2x / g
= (100^2 × Sin90) / 10
= 1000 m
= 1 km

Time of flight = 2uSinx / g
= 2 × 100 × Sin45 / 10
= 14.14 seconds