Question

show that for a given horizontal range and object be projected at different angle theta and 90 minus theta from horizontal​

Answer 1

Answer:

Yes it will be same.

Explanation:

( Assuming the symbol for theta =@, sorry I don't have the symbol of theta in my keyboard)

The formula of range is

R = 2.usin@.ucos@

Now, when angle of projection is @,

R= [email protected]@

When the angle is (90-@),then,

R = 2.usin(90-@).ucos(90-@)

R = [email protected]@. {sin(90-@)=cos@}

R = [email protected]@

See both came out to be same

R for @ = R for (90-@)