A 20-N Crate Starting at Rest Slides Down a Rough $\degree$

question 74

Multiple Choice

A 20-N crate starting at rest slides down a rough 5.0-m long ramp,inclined at 25 $\degree$ with the horizontal.20 J of energy is lost to friction.What will be the speed of the crate at the bottom of the incline?

• A)0.98 m/s
• B)1.9 m/s
• C)3.2 m/s
• D)4.7 m/s