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A Projectile Is Launched from the Edge of a Cliff 10.0 m/s10.0 \mathrm{~m} / \mathrm{s}

Question 1

Multiple Choice

A projectile is launched from the edge of a cliff with a velocity of 10.0 m/s10.0 \mathrm{~m} / \mathrm{s} at an angle of 30.0 degrees above the horizontal. What is the velocity of the projectile 2.00 seconds later (ignoring air resistance, and assuming it hasn't reached the ground yet) ?


A) Vx=5.6 m/s,Vy=14.6 m/sV_{\mathrm{x}}=5.6 \mathrm{~m} / \mathrm{s}, \mathrm{V}_{\mathrm{y}}=-14.6 \mathrm{~m} / \mathrm{s}
B) Vx=14.6 m/s,Vy=5.6 m/s\mathrm{V}_{\mathrm{x}}=14.6 \mathrm{~m} / \mathrm{s}, \mathrm{V}_{\mathrm{y}}=-5.6 \mathrm{~m} / \mathrm{s}
C) Vx=8.7 m/s,Vy=14.6 m/s\mathrm{V}_{\mathrm{x}}=8.7 \mathrm{~m} / \mathrm{s}, \mathrm{V}_{\mathrm{y}}=-14.6 \mathrm{~m} / \mathrm{s}
D) Vx=14.6 m/s,Vy=8.7 m/s\mathrm{V}_{\mathrm{x}}=-14.6 \mathrm{~m} / \mathrm{s}, \mathrm{V}_{\mathrm{y}}=8.7 \mathrm{~m} / \mathrm{s}
E) Vx=8.7 m/s,Vy=14.6 m/s\mathrm{V}_{\mathrm{x}}=-8.7 \mathrm{~m} / \mathrm{s}, \mathrm{V}_{\mathrm{y}}=-14.6 \mathrm{~m} / \mathrm{s}

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