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Question

Question: write order of I] Time of Flight II] $v_x$ III] $v_y$...

write order of I] Time of Flight II] vxv_x III] vyv_y

Answer

I] A > B > C, II] C > B > A, III] A > B > C

Explanation

Solution

I] Time of Flight is proportional to the initial vertical velocity, which is proportional to the square root of the maximum height. Since HA>HB>HCH_A > H_B > H_C, TA>TB>TCT_A > T_B > T_C.

II] The horizontal velocity is constant and equal to the initial horizontal velocity uxu_x. The range is R=uxTR = u_x T, so ux=R/Tu_x = R/T. With RA<RB<RCR_A < R_B < R_C and TA>TB>TCT_A > T_B > T_C, the ratio R/TR/T increases from A to C, implying uxA<uxB<uxCu_{xA} < u_{xB} < u_{xC}.

III] The vertical velocity refers to the initial vertical velocity uyu_y. Since the maximum height H=uy2/(2g)H = u_y^2/(2g), and HA>HB>HCH_A > H_B > H_C, we have uyA>uyB>uyCu_{yA} > u_{yB} > u_{yC}.