What is the rocks speed in the horizontal direction

Reference no: EM13526540

A cannon shoots a rock from the ground at an angle of 31.0° above the horizontal. The rock's initial speed is 204.0 m/s. (Neglect the height of the shooting point and air resistance.)

(a) What is the rock's speed in the horizontal direction just before it hits the ground?

(m/s)

(b) How long is the rock in the air?

(s)

Reference no: EM13526540

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