In order to push a pile of crates forward, a student applies a force. There is a friction force that pushes backward on the crates with a force half as much as the force from the student. In your own words, describe what motion the crates will experience, using the concepts of inertia, mass, velocity, and acceleration. What do Newton's Laws of Motion predict for how the crates will move? Be specific in supporting your arguments by referencing specifically which Laws of Motion you are applying, and what they mean. Its a construction response pls help its my final exam

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?