# 7- A projectile is fired upward at 30 to the horizontal- What do we kn.docx

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7. A projectile is fired upward at 30Â° to the horizontal. What do we know about the horizontal component of the velocity if air resistance is neglected? A) It increases, then decreases C) It increase at a constant rate. B) It decreases at a constant rate. D) It remains constant Solution when a projectile is fired from ground at an angle 30 o to the horizontal the horizontal component of the velocity remains consatant because there will be no acceleration in the horizontal direction hence there is no change in the velocity takimg the equation of motion v = v o + a t since a = 0 v = v o hence (D) is the correct option .

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### 7- A projectile is fired upward at 30 to the horizontal- What do we kn.docx

• 1. 7. A projectile is fired upward at 30Â° to the horizontal. What do we know about the horizontal component of the velocity if air resistance is neglected? A) It increases, then decreases C) It increase at a constant rate. B) It decreases at a constant rate. D) It remains constant Solution when a projectile is fired from ground at an angle 30 o to the horizontal the horizontal component of the velocity remains consatant because there will be no acceleration in the horizontal direction hence there is no change in the velocity takimg the equation of motion v = v o + a t since a = 0 v = v o hence (D) is the correct option
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