Which of the following statements is correct about a machine?

Physics JAMB 2016

Which of the following statements is correct about a machine?

  • Efficiency of a machine is always greater than I
  • Efficiency decreases with an increase in friction checkmark
  • Velocity ratio depends on friction
  • Mechanical advantage increases with an increase in friction

The correct answer is: B

Explanation

No official explanation is available for this question at this time. Please check contributions posted by others below. If you can provide an explanation to help other student learn, please

There is an explanation video available .

Previous Question Next Question

Leave A Comment