·does a change in the initial speed change the time of flight? If so, how?

Explanation:

When an object is thrown at an angle θ with the horizontal . It covers the parabolic path . We can calculate the  time of flight by the relation

T =

here u is the initial velocity and g is acceleration due to gravity .

and T is time of flight .

Thus if we increase the initial velocity , the time of flight also increases and vice versa .

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