Question

68. Karla Jumpier, was Greenhill High School's star long jumper. At the state competition, she had the winning jump of 8.12 m. Neglecting air resistance, which of the following is NOT true about Karla while she is in the air? a. There is only one force acting on Karla; the gravitational force. b. There are two forces acting on Karla; an applied force and the gravitational force. c. Karla has an initial velocity. d. None of the above are true. 69. A golfer drives her golf ball from the tee and down the fairway in a high arcing shot. When the ball is at the highest point of its flight: a. the vertical velocity and acceleration are both zero b. the horizontal velocity is zero and the vertical velocity is zero c. the horizontal velocity is non-zero and the vertical velocity is zero d. the vertical velocity is non-zero and the acceleration is zero 70. The path that a projectile takes as it moves is called the a. range b. trajectory c. displacement d. peak 71. When using equations to solve for horizontal and vertical motion variables, which variable is the same between horizontal and vertical motion of a projectile? a. acceleration b. displacement c. velocity d. time 72. For a projectile, what is the acceleration in the horizontal direction? a. it depends on initial velocity c. it depends on how long it is in the air b. 0 m/s^2 d. it depends on the vertical acceleration 73. From the roof of the CHS auditorium, Mr. Garcia shoots an arrow horizontally and then drops one vertical. Assuming air resistance is negligible, which arrow will land in the shortest time period? a. The shot arrow lands in the shortest time due to its initial velocity. b. The dropped arrow lands in the shortest time period because it travels a short distance. c. Both arrows will land in the same time period because they are influenced by gravity and fall at the same rate. d. More information is needed to answer the question. 74. A 100 kg iron rod and a 10 kg bag of potatoes are projected horizontally from the roof of a building at the same time. Which will hit the ground first? (Neglect air resistance) a. they will hit the ground at the same time c. the 10 kg mass b. the 100 kg mass d. cannot be determined from given information

68. Karla Jumpier, was Greenhill High School's star long jumper. At the state competition, she had the winning jump of 8.12 m. Neglecting air resistance, which of the following is NOT true about Karla while she is in the air?
a. There is only one force acting on Karla; the gravitational force.
b. There are two forces acting on Karla; an applied force and the gravitational force.
c. Karla has an initial velocity.
d. None of the above are true.

69. A golfer drives her golf ball from the tee and down the fairway in a high arcing shot. When the ball is at the highest point of its flight:
a. the vertical velocity and acceleration are both zero
b. the horizontal velocity is zero and the vertical velocity is zero
c. the horizontal velocity is non-zero and the vertical velocity is zero
d. the vertical velocity is non-zero and the acceleration is zero

70. The path that a projectile takes as it moves is called the
a. range b. trajectory c. displacement d. peak

71. When using equations to solve for horizontal and vertical motion variables, which variable is the same between horizontal and vertical motion of a projectile?
a. acceleration b. displacement c. velocity d. time

72. For a projectile, what is the acceleration in the horizontal direction?
a. it depends on initial velocity c. it depends on how long it is in the air
b. 0 m/s^2 d. it depends on the vertical acceleration

73. From the roof of the CHS auditorium, Mr. Garcia shoots an arrow horizontally and then drops one vertical. Assuming air resistance is negligible, which arrow will land in the shortest time period?
a. The shot arrow lands in the shortest time due to its initial velocity.
b. The dropped arrow lands in the shortest time period because it travels a short distance.
c. Both arrows will land in the same time period because they are influenced by gravity and fall at the same rate.
d. More information is needed to answer the question.

74. A 100 kg iron rod and a 10 kg bag of potatoes are projected horizontally from the roof of a building at the same time. Which will hit the ground first? (Neglect air resistance)
a. they will hit the ground at the same time c. the 10 kg mass
b. the 100 kg mass d. cannot be determined from given information

68. Karla Jumpier, was Greenhill High School's star long jumper. At the state competition, she had the winning jump of 8.12 m. Neglecting air resistance, which of the following is NOT true about Karla while she is in the air?
a. There is only one force acting on Karla; the gravitational force.
b. There are two forces acting on Karla; an applied force and the gravitational force.
c. Karla has an initial velocity.
d. None of the above are true.

69. A golfer drives her golf ball from the tee and down the fairway in a high arcing shot. When the ball is at the highest point of its flight:
a. the vertical velocity and acceleration are both zero
b. the horizontal velocity is zero and the vertical velocity is zero
c. the horizontal velocity is non-zero and the vertical velocity is zero
d. the vertical velocity is non-zero and the acceleration is zero

70. The path that a projectile takes as it moves is called the
a. range b. trajectory c. displacement d. peak

71. When using equations to solve for horizontal and vertical motion variables, which variable is the same between horizontal and vertical motion of a projectile?
a. acceleration b. displacement c. velocity d. time

72. For a projectile, what is the acceleration in the horizontal direction?
a. it depends on initial velocity c. it depends on how long it is in the air
b. 0 m/s^2 d. it depends on the vertical acceleration

73. From the roof of the CHS auditorium, Mr. Garcia shoots an arrow horizontally and then drops one vertical. Assuming air resistance is negligible, which arrow will land in the shortest time period?
a. The shot arrow lands in the shortest time due to its initial velocity.
b. The dropped arrow lands in the shortest time period because it travels a short distance.
c. Both arrows will land in the same time period because they are influenced by gravity and fall at the same rate.
d. More information is needed to answer the question.

74. A 100 kg iron rod and a 10 kg bag of potatoes are projected horizontally from the roof of a building at the same time. Which will hit the ground first? (Neglect air resistance)
a. they will hit the ground at the same time c. the 10 kg mass
b. the 100 kg mass d. cannot be determined from given information

Added by Marcos T.

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