How much work must be done to stop a 1125-kg car traveling at 105 km/h?

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.

What is the length x of the side of the triangle below? (hint: use the cosine function)

Can anybody me with this? ? (picture included.)