Your medieval history class is constructing a trebuchet, a catapultlike weapon for hurling stones at enemy castles. the plan is to launch stones off a 73-m-high cliff, with initial speed 37 m/s . some members of the class think a 45∘ launch angle will give the maximum range, but others claim the cliff height makes a difference. what do you give for the angle that will maximize the range? express your answer using two significant figures.