# Question: Two angles are complementary when their sum is 90 0 Find the

Two angles are complementary when their sum is 90.0°.

Find the ranges for two projectiles launched with identical initial speeds of 36.2 m/s at angles of elevation above the horizontal that are complementary pairs.

(a) For one trial, the angles of elevation are 36.0°and 54.0°.

(b) For the second trial, the angles of elevation are 23.0°and 67.0°.

(c) Finally, the angles of elevation are both set to 45.0°.

(d) What do you notice about the range values for each complementary pair of angles? At which of these angles was the range greatest?

Find the ranges for two projectiles launched with identical initial speeds of 36.2 m/s at angles of elevation above the horizontal that are complementary pairs.

(a) For one trial, the angles of elevation are 36.0°and 54.0°.

(b) For the second trial, the angles of elevation are 23.0°and 67.0°.

(c) Finally, the angles of elevation are both set to 45.0°.

(d) What do you notice about the range values for each complementary pair of angles? At which of these angles was the range greatest?

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