A 25-Kg Child Starts from Rest and Attains a Speed $\circ$

question 30

Multiple Choice

A 25-kg child starts from rest and attains a speed of 4 m/s at the bottom of a 27 ^$\circ$ slide of length 6 m.The coefficient of the kinetic friction of the slide is

• A)0.08.
• B)0.19.
• C)0.22.
• D)0.36.