Physics - Review Answer 32

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32.	Neglecting air resistance, which angle of inclination gives the largest range shooting projectiles when starting and ending at the same altitude?
	A.	15^o	C.	45^o
	B.	30^o	D.	60^o

	v_o² Sin 2 theta R = ------------------------ this equation only works when initial and final altitude are the same g Sin 90^o = 1 = maximum Sine value 2 x 45^o = 90^o thus the largest range is when inclination is 45^o. The Correct Answer is C.