A car traveling at 28.0 m/s hits a bridge abutment. A passenger in the car, who has a mass of 67.0 kg, moves forward a distance of 59.5 cm while being brought to rest by an inflated air bag. Assuming that the force that stops the passenger is constant, what is the magnitude of this force?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of "if…then…because…” when writing your hypothesis.

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?