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Projectile Motion Questions

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**A ball is thrown at an original speed of 8**

A ball is thrown at an original speed of 8.0 m/s at an angle of 35° above the horizontal. What is the speed of the ball when it returns to the same horizontal level?

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**A ball is thrown at an original speed of 8**

A ball is thrown at an original speed of 8.0 m/s at an angle of 35° above the horizontal. What is the speed of the ball when it returns to the same horizontal level? m/s

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A package of supplies is dropped from a plane, and one second later a second package is dropped. Neglecting air resistance, the distance between the falling packages will A) be constant. B) decrease. C) increase. D) depend on their weight.

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A package of supplies is dropped from a plane, and one second later a second package is dropped. Neglecting air resistance, the distance between the falling packages will C) increase.

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At what angle should a water-gun be aimed in order for the water to land with the greatest horizontal range?

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At what angle should a water-gun be aimed in order for the water to land with the greatest horizontal range? 45°

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The acceleration of gravity on the moon is only one-sixth of that on earth. If you hit a baseball on the moon with the same effort (and at the same speed and angle) that you would on earth, the ball would land A) the same distance away. B) one-sixth as far. C) 6 times as far. D) 36 times as far.

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The acceleration of gravity on the moon is only one-sixth of that on earth. If you hit a baseball on the moon with the same effort (and at the same speed and angle) that you would on earth, the ball would land C) 6 times as far.

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When a football in a field goal attempt reaches its maximum height, its speed is A) zero. B) less than its initial speed. C)equal to its initial speed. D) greater than its initial speed.

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When a football in a field goal attempt reaches its maximum height, its speed is B) less than its initial speed.

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**A pilot drops a bomb from a plane flying horizontally**

A pilot drops a bomb from a plane flying horizontally. When the bomb hits the ground, the horizontal location of the plane A) will be behind the bomb. B) will be over the bomb. C) will be in front of the bomb. D) cannot be determined.

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**A pilot drops a bomb from a plane flying horizontally**

A pilot drops a bomb from a plane flying horizontally. When the bomb hits the ground, the horizontal location of the plane B) will be over the bomb.

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A soccer ball is kicked with a velocity of 25 m/s at an angle of 45° above the horizontal. What is the vertical component of its acceleration as it travels along its trajectory?

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A soccer ball is kicked with a velocity of 25 m/s at an angle of 45° above the horizontal. What is the vertical component of its acceleration as it travels along its trajectory? m/s2

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A stone is thrown horizontally from the top of a tower at the same instant a ball is dropped vertically. Which object is hits the ground first?

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A stone is thrown horizontally from the top of a tower at the same instant a ball is dropped vertically. Which object is hits the ground first? Neither, they hit at the same time.

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A stone is thrown horizontally from the top of a tower at the same instant a ball is dropped vertically. Which object is traveling faster when it hits the level ground below?

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A stone is thrown horizontally from the top of a tower at the same instant a ball is dropped vertically. Which object is traveling faster when it hits the level ground below? The stone.

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An Olympic athlete throws a javelin at four different angles above the horizontal, each with the same speed: 30° 40° 60° 80° . Which two throws cause the javelin to land the same distance away?

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An Olympic athlete throws a javelin at four different angles above the horizontal, each with the same speed: 30° 40° 60° 80° . Which two throws cause the javelin to land the same distance away? 30° and 60°

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A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same height. Ignore air resistance. Compare the times of fall of the two bullets.

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A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same height. Ignore air resistance. Compare the times of fall of the two bullets. The times are the same.

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Ignoring air resistance, the horizontal component of a projectile’s velocity A) is zero. B) remains constant. C) continuously increases. D) continuously decreases.

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**Ignoring air resistance, the horizontal component of a projectile’s velocity B) remains constant.**

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Ignoring air resistance, the horizontal component of a projectile’s acceleration A)is zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases.

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**Ignoring air resistance, the horizontal component of a projectile’s acceleration A)is zero.**

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