6. Intro to Forces (Dynamics)

In the context of forces and kinematics, which force is best represented by $fg$?

In the context of forces and kinematics, when replacing the force system acting on a post by a single resultant force, what does the resultant force represent?

Which of the following is a long-range force that can act on a crate at rest on the ground?

Why doesn't the $F$orce of a bowling ball always knock down every pin when it strikes them?

Which of the following does not affect the distance required to stop a vehicle moving at a certain $v$?

A uniform horizontal beam weighs $190N$ and its center of gravity is at its center. If the beam is supported at both ends, what is the magnitude of the upward force exerted by each support when the beam is in static equilibrium?

Which of the following factors most directly determine how much $F$ an object exerts when it collides with another object?

A car is being pulled out of the mud with a constant horizontal force. If the car starts from rest and the force remains constant, what can be said about the car's acceleration and velocity as it is being pulled?

Why does a feather not fall at the same rate as an apple when dropped from the same height on Earth?

According to Newton's Third Law, which statement best describes the forces involved when two objects interact?

Pam is moving to the right on a horizontal surface. Which of the following forces can act on her as she moves?

A $1.0\mathrm{kg}$ block hangs at rest from a rope that is attached to a wall. If the block is in equilibrium and the rope is perfectly vertical, what is the tension in the rope?

In the context of forces and kinematics, which force acts perpendicular to the surface of an object?$?$

A book with a weight of $12–N$ is at rest on a flat table. How many newtons of support force does the table provide?

A $1.83\mathrm{kg}$ book is placed on a flat desk. What is the magnitude of the normal force exerted on the book by the desk? (Assume $g=9.8m/s^2$ and neglect any other forces.)