Question

a hunter shoots a stone from his catapult with an initial velocity of 40 m per seconds add elevation of 60 degree with the aim of hitting a bird 145n away.
1. calculate the time of flight ​

Answer 1

Answer:

approximately 7 seconds

Explanation:

The given scenario is just an example of Projectile Motion.

In this question, we are given:

- Initial Velocity (u) = 40 m/s

- Angle of Elevation (θ) = 60 degrees

- Distance of Bird (s) = 145 meters        [Not used for the time of flight]

Time of Flight:

$T = \frac{2uSin(\theta)}{g}$

we will use g = 9.8 m/s/s since we are not told otherwise.
$T = \frac{2(40)Sin(60 degrees)}{9.8}$

$T = \frac{40\sqrt{3}}{9.8}$

T = 4.081(√3) seconds
rounded to 7 seconds