Question

5. A player kicks a football. It falls at a distance of 100m
after 5s. Assuming (g = 10m/s2), Find: (i) horizontal
and vertical components of the football velocity at the
time when it is kicked (ii) projection angle (iii)
maximum height.
Ans.(i) 20 m/s and 25 m/s (ii) tan-'(5 / 4)(iii) 31.25 m​

Answer 1

Answer:

horizontal u=Range/T = 100/5= 20m/s

vertical component = ux +gt = 0+10×5/2=25m/s

tan©=Vertical component/ horizontal component

= 25m/s ÷ 20m/s = 5/4 .