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Obtain an expression for time of fligh...

Obtain an expression for
time of flight

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Expression for time of flight
consider `v=(v_0sintheta)-g t`
Put v=0, for t=time of ascent `=t_n`
`:." "t_a=(v_0sintheta)/(g)`
but time of ascent=time of descent and time of flight `T=t_a+t_d`
i.e. `T=(2v_0sintheta)/(g)` and T`propv_0` for a given angle of projection.
Note: `T=(2v_(0y))/(g)`
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