Bose is practicing Javelin throws. What is the relationship between the height of the javelin and time ? What would the graph of this function look like?

The correct answer is: x = T (Time of flight), y = 0

SOL – The relationship between time of flight, T and maximum height of the projectile (javelin), H is given by
H =  g T² which is a quadratic equation.
We know that the graph of a quadratic function is a parabola and has a curved shape.
Let time taken = x
Height of the flight = y

Since javelin will be thrown from certain height by Bose, when time, x = 0 , y = a  
After some time, javelin will reach at its maximum height, H.
Then, it will start to fall i.e., height will decrease and finally javelin will reach ground.
So, when x = T (Time of flight), y = 0

H =  g T2, where H is maximum height and T is time of the flight.