Answer:
The maximum height covered is 3.25 m.
The horizontal distance covered is 9.81 m.
The total time in the air is 1.63 seconds.
Explanation:
The launch speed,
.
Angle of launch with the horizontal, ![\theta = 53 ^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%20%3D%2053%20%5E%7B%5Ccirc%7D)
So, the vertical component of the initial velocity,
.
The horizontal component of the initial velocity,
![u_0\cos\theta=10 \cos 53 ^{\circ}](https://tex.z-dn.net/?f=u_0%5Ccos%5Ctheta%3D10%20%5Ccos%2053%20%5E%7B%5Ccirc%7D)
Let, t be the time of flight, to the horizontal distance covered
.
Not, applying the equation of motion in the vertical direction.
![s= ut +\frac 1 2 at^2](https://tex.z-dn.net/?f=s%3D%20ut%20%2B%5Cfrac%201%202%20at%5E2)
Where s is the displacement in time t, u is the initial velocity and a is the acceleration.
In this case,
(from equation (i), s=0 (as the final height is same as the launch height) and
(negative sign is due to the downward direction).
![\Rightarrow 0 = 10 (\sin 53 ^{\circ})t-\frac 1 2 (9.81)t^2](https://tex.z-dn.net/?f=%5CRightarrow%200%20%3D%2010%20%28%5Csin%2053%20%5E%7B%5Ccirc%7D%29t-%5Cfrac%201%202%20%289.81%29t%5E2)
seconds.
So, the total time in the air is 1.63 seconds.
From equation (i),
Total horizontal distance covered is
.
Now, for the maximum height, H, applying the equation of motion as
![v^2=u^2+2as](https://tex.z-dn.net/?f=v%5E2%3Du%5E2%2B2as)
Here, v is the final velocity and v=0 (at the maximum height), and h=H.
So, ![0^2=(10 \sin 53 ^{\circ})^2-2(9.81)H](https://tex.z-dn.net/?f=0%5E2%3D%2810%20%5Csin%2053%20%5E%7B%5Ccirc%7D%29%5E2-2%289.81%29H)
![\Rightarrow H = \frac {(10 \sin 53 ^{\circ})^2}{2\times 9.81}](https://tex.z-dn.net/?f=%5CRightarrow%20H%20%3D%20%5Cfrac%20%7B%2810%20%5Csin%2053%20%5E%7B%5Ccirc%7D%29%5E2%7D%7B2%5Ctimes%209.81%7D)
.
Hence, the maximum height covered is 3.25 m.