AP Physics C: Mechanics - Unit 1
Progress Check MCQ
A ball given an initial velocity of v0 at an angle θ above the horizontal. The ball travels up and returns to
the same height from which it was released. Possible representations of the motion of the ball are
shown below. Which combination of representations correctly represents the vertical component of the
ball's motion? - ANSWER✅✅✅B: II and V
A ball is thrown into the air with an initial velocity of 10 m/s at an angle of 45 degrees above the
horizontal, as represented above.
If air resistance is negligible, the time needed for the ball to return to the ground is most nearly -
ANSWER✅✅✅B. 1.42s
A ball is thrown into the air with an initial velocity of 10 m/s at an angle of 45 degrees above the
horizontal, as represented above.
Which of the following representations of the velocity and acceleration of the ball is true? -
ANSWER✅✅✅C. At Highest Point: velocity points to right and acceleration points downwards
A block of mass m is on surface of negligible friction that is inclined at an angle of θ above the
horizontal. The block is initially moving up the incline, and its position x as a function of time t is given by
the equation x(t)=Mt−Nt^2 , where M has units of m/s and N has units of m/s^2 . The value of t when
the block comes to rest is most nearly - ANSWER✅✅✅B: M/2N
A car is traveling with speed v0 when it begins to speed up at a rate of Δv every second. After t1
seconds, the car travels with zero acceleration for t2 seconds. Which of the following is a correct
expression for the displacement of the car during this motion? - ANSWER✅✅✅D: v0t1 +
1/2(Δv)t1^2+(v0+(Δv)t1)t2
A cart is given an initial speed of v0 upward toward a motion detector on a surface of negligible friction
that is inclined at an angle θ above the horizontal, as shown in the figure. The data from the motion
detector for the position x as a function of time t are shown in the chart. The value of v0 is most nearly -
ANSWER✅✅✅D: 5 m/s
A sling is used to give a stone an initial velocity of 20m/s at an angle of 30° above the horizontal. The
stone travels through the air and lands a horizontal distance of 32m from where it was released. If the
stone returns to the same height from which it was thrown, which of the following claims best describes
the motion of the air through the stone's trajectory? - ANSWER✅✅✅E: There must be a horizontal
Progress Check MCQ
A ball given an initial velocity of v0 at an angle θ above the horizontal. The ball travels up and returns to
the same height from which it was released. Possible representations of the motion of the ball are
shown below. Which combination of representations correctly represents the vertical component of the
ball's motion? - ANSWER✅✅✅B: II and V
A ball is thrown into the air with an initial velocity of 10 m/s at an angle of 45 degrees above the
horizontal, as represented above.
If air resistance is negligible, the time needed for the ball to return to the ground is most nearly -
ANSWER✅✅✅B. 1.42s
A ball is thrown into the air with an initial velocity of 10 m/s at an angle of 45 degrees above the
horizontal, as represented above.
Which of the following representations of the velocity and acceleration of the ball is true? -
ANSWER✅✅✅C. At Highest Point: velocity points to right and acceleration points downwards
A block of mass m is on surface of negligible friction that is inclined at an angle of θ above the
horizontal. The block is initially moving up the incline, and its position x as a function of time t is given by
the equation x(t)=Mt−Nt^2 , where M has units of m/s and N has units of m/s^2 . The value of t when
the block comes to rest is most nearly - ANSWER✅✅✅B: M/2N
A car is traveling with speed v0 when it begins to speed up at a rate of Δv every second. After t1
seconds, the car travels with zero acceleration for t2 seconds. Which of the following is a correct
expression for the displacement of the car during this motion? - ANSWER✅✅✅D: v0t1 +
1/2(Δv)t1^2+(v0+(Δv)t1)t2
A cart is given an initial speed of v0 upward toward a motion detector on a surface of negligible friction
that is inclined at an angle θ above the horizontal, as shown in the figure. The data from the motion
detector for the position x as a function of time t are shown in the chart. The value of v0 is most nearly -
ANSWER✅✅✅D: 5 m/s
A sling is used to give a stone an initial velocity of 20m/s at an angle of 30° above the horizontal. The
stone travels through the air and lands a horizontal distance of 32m from where it was released. If the
stone returns to the same height from which it was thrown, which of the following claims best describes
the motion of the air through the stone's trajectory? - ANSWER✅✅✅E: There must be a horizontal
