Q

A machine has efficiency 75% and VR = 4. Its mechanical advantage is:

✓ Answer: C 3
Efficiency = MA/VR × 100. Thus 75 = MA/4 × 100, giving MA = 3.
← Previous Question Next Question →

📚 Related Questions — Mechanics

1 Which of the following situations shows an object with zero linear velocity… 2 Which statement best describes the law of conservation of energy? 3 During an object’s free fall: 4 A constant force acts on a 5 kg object for 2 s,… 5 In which year were Newton’s laws of motion published? 6 Which is part of mechanical energy?