A 075-Kg Sphere Is Released from Rest and Is Moving 5

question 22

Multiple Choice

A 0.75-kg sphere is released from rest and is moving 5.0 m/s after falling 2.0 m in a viscous medium.What is the change in mechanical energy caused by the force the viscous medium exerts on the sphere during this descent?

• A)-6.1 J
• B)-4.6 J
• C)-5.3 J
• D)-6.8 J
• E)-2.7 J