Question

Prove that a + r + t = 1​

Answer 1

Answer:

As we know that time of flight T=

g

2uSinθ

so T

2

=4u

2

Sin

2

θ/g

2

And horizontal range is R=2u

2

SinθCosθ/g

Now on dividing T

2

by R we get T

2

/R=2tanθ/g

or gT

2

=2Rtanθ,proved.

Answer 2

This is the answer of this question