展開する solve(3.95=xcos(45)t,0=xsin(45)-9.8t)

解

展開する

so l v e (3.95 = x \cdot cos (4 5^{\circ}) t, 0 = x \cdot sin (4 5^{\circ}) - 9.8 t)

10.73721 \dots l so v = 0.70710 \dots x - 26.63916 \dots l so v t

解答ステップ

so l v e (3.95 = x cos (4 5^{\circ}) t, 0 = x sin (4 5^{\circ}) - 9.8 t)

= e l so v (0 \cdot 3.95 cos (4 5^{\circ}) sin (4 5^{\circ}) =, = xx t - 9.8 t)

分配法則を適用する:

a (b - c) = ab - a c

a = so l v e, b = 3.95 = x cos (4 5^{\circ}) t, 0 = x sin (4 5^{\circ}), c = 9.8 t

so l v e 3.95 = x cos (4 5^{\circ}) t, 0 = x sin (4 5^{\circ}) - so l v e 9.8 t

3.95 e l so v = cos (4 5^{\circ}) x t, 0 = sin (4 5^{\circ}) x - 9.8 e l so v t

簡素化

3.95 e l so v = cos (4 5^{\circ}) x t, 0 = sin (4 5^{\circ}) x - 9.8 e l so v t : 10.73721 \dots l so v = 0.70710 \dots x - 26.63916 \dots l so v t

10.73721 \dots l so v = 0.70710 \dots x - 26.63916 \dots l so v t