Object a Is Acted on by Only Object B

question 28

Multiple Choice

Object A is acted on by only object B. The mass of object A is 20.0 kg and its acceleration is 4.00 m/s² west. Object B is acted on by two forces, the force of object A on object B and another unknown force. If mass of object B is 40.0 kg and the acceleration of object B is 3.00 m/s² west, what is the unknown force?

• A)40 N west
• B)120 N west
• C)80 N east
• D)200 N west
• E)80 N west

---

Definitions:

Martin Luther King

An American civil rights leader who played a pivotal role in advancing civil rights in the United States through nonviolent protest, notably the "I Have a Dream" speech.

Gandhi

Mohandas Karamchand Gandhi, an Indian lawyer, anti-colonial nationalist, and political ethicist, who employed nonviolent resistance to lead the successful campaign for India's independence from British rule.

Retributive Justice

A system of criminal justice based on the punishment of offenders rather than rehabilitation, premised on the belief that punishment is a morally justified response to wrongdoing.

Coercive Powers

The ability or authority to force someone to do something or to restrain their actions by using threats or violence.