THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Kinetic friction
Where did the kinetic energy go?
A 2 kg block slides 5 m along a horizontal surface with μk = 0.30 while remaining in motion.
Find the increase in thermal energy from friction.
Organize the givens & assumptions
- m = 2 kg
- s = 5 m
- μk = 0.30
g = 10 m/s²; level fixed surface, constant kinetic friction and continued sliding over the full 5 m.
- A
- B
- C
- D
Try it on paper first. Free sample problems in every collection include the complete reasoning: find one in this collection →