A football is kicked from ground level with an initial velocity of 24.2 m/s at angle of 34.0° above the horizontal. How long is the football in the air before it hits the ground? Ignore air resistance.
Vertical component of velocity= 24.2 sin (34)
= 13.53 m/s
using equation of motion in Vertical direction
0=13.53 - 9.8*t
This is time required for the football to reach maximum height.
Same amount of time it will take to come down.
So, total time= 2*1.38= 2.76 s
Ans: 2.76 s