PHY 111 CERTIFICATION EVALUATION 2026
SOLVED QUESTION COLLECTION
◉ A ball is attached to the center of the ceiling inside of a van
moving at constant speed. If the ball is released, where will the ball
land?
Answer: Directly below its starting position (middle of the van)
◉ A student fires a bullet horizontally from a gun. Which statement
is most accurate?
Answer: The bullet will start to fall as soon as it leaves the gun.
◉ The grid below shows the path a student takes through a campus
area. What is the approximate direction of the student's overall
displacement? (Be careful—this is not a position vs. time graph.)
Answer: 56°
◉ A student standing on the edge of a cliff throws a rock downward
at a speed of 7.5 m/s at an angle 40° below the horizontal. It takes
the rock 2.4 seconds to hit the ground. How tall is the cliff?
Answer: 39.8 m
, ◉ A student rolls two balls off of a table. Ball A has twice the mass of
ball B. Both balls leave the table at the same time with the same
starting velocity. Which ball will hit the ground first? (Air resistance
is negligible.)
Answer: A will hit the ground at the same time as B.
◉ Vector A has components A = <-2, 5> m/s and vector B has
components B = <6, -2> m/s. What is the magnitude of vector C if C =
A + B?
Answer: 5 m/s
◉ A student throws a rock horizontally off a 5.0 m tall building. The
rock's initial speed is 6.0 m/s. How long will it take the rock to reach
the ground? Air resistance is negligible.
Answer: 1.0 s
◉ A student fires a bullet horizontally out of a gun. At the same time
the bullet leaves the gun, the student drops a second bullet from the
same height. Which bullet hits the ground first?
Answer: The two bullets will hit the ground at the same time.
◉ A student rolls two balls off of a table. Ball A has twice the mass of
ball B. Both balls leave the table with the same starting velocity.
Which ball will land further away from the table? (Air resistance is
negligible.)
SOLVED QUESTION COLLECTION
◉ A ball is attached to the center of the ceiling inside of a van
moving at constant speed. If the ball is released, where will the ball
land?
Answer: Directly below its starting position (middle of the van)
◉ A student fires a bullet horizontally from a gun. Which statement
is most accurate?
Answer: The bullet will start to fall as soon as it leaves the gun.
◉ The grid below shows the path a student takes through a campus
area. What is the approximate direction of the student's overall
displacement? (Be careful—this is not a position vs. time graph.)
Answer: 56°
◉ A student standing on the edge of a cliff throws a rock downward
at a speed of 7.5 m/s at an angle 40° below the horizontal. It takes
the rock 2.4 seconds to hit the ground. How tall is the cliff?
Answer: 39.8 m
, ◉ A student rolls two balls off of a table. Ball A has twice the mass of
ball B. Both balls leave the table at the same time with the same
starting velocity. Which ball will hit the ground first? (Air resistance
is negligible.)
Answer: A will hit the ground at the same time as B.
◉ Vector A has components A = <-2, 5> m/s and vector B has
components B = <6, -2> m/s. What is the magnitude of vector C if C =
A + B?
Answer: 5 m/s
◉ A student throws a rock horizontally off a 5.0 m tall building. The
rock's initial speed is 6.0 m/s. How long will it take the rock to reach
the ground? Air resistance is negligible.
Answer: 1.0 s
◉ A student fires a bullet horizontally out of a gun. At the same time
the bullet leaves the gun, the student drops a second bullet from the
same height. Which bullet hits the ground first?
Answer: The two bullets will hit the ground at the same time.
◉ A student rolls two balls off of a table. Ball A has twice the mass of
ball B. Both balls leave the table with the same starting velocity.
Which ball will land further away from the table? (Air resistance is
negligible.)
