BYU Physics 121 Chapter 4 Conceptual Questions and answers verified to pass 2025

BYU Physics 121 Chapter 4 Conceptual
Questions and answers verified to pass
2025
Which of the following is not accelerating? - correct answer ✔a. An object
falling freely under the influence of gravity.
b. A car stopping.
c. A ball on the end of string moving with constant speed around a circle.
d. A car speeding up going around a curve.
e. All of the above are accelerating.


Answer e


A football is thrown by a quarterback from shoulder level to a receiver
downfield, who catches it at shoulder level. At what point in the footballs
motion is its speed at a minimum? Ignore air resistance. - correct answer
✔At the top of the trajectory.


A cannonball is shot horizontally from the top of a tower at the same time
another cannonball is dropped from the same height on the tower. The ground
is level and we can ignore air resistance. The cannonball which is dropped
hits the ground with - correct answer ✔a lower speed and at the same time
as the other cannonball


A car is slowing down as it goes around a curve. The total acceleration of the
car points in which direction? - correct answer ✔Partly toward the center of
the curve and partly opposite to the direction of the car's velocity.