A 50-N Force Is the Only Force on a 2-Kg

question 63

Multiple Choice

A 50-N force is the only force on a 2-kg crate that starts from rest.At the instant the crate has gone 2 m the rate at which the force is doing work is:

• A)2.5 W
• B)25 W
• C)75 W
• D)100 W
• E)500 W