A machine lifts a load of 200 N when an effort of 50 N is applied. What is the mechanical advantage of the machine ?
4
Mechanical advantage (MA) of a machine is the ratio of the load lifted to the effort applied.
\( MA = \frac{\text{Load}}{\text{Effort}} \)
\( MA = \frac{200}{50} = 4 \). Check: \( 50 \times 4 = 200 \) N, the load lifted.
Since the load is four times the effort, the machine multiplies the applied force four times; mechanical advantage has no unit because it is a ratio of two forces.
Hence, 4.
Important Questions from Work Power Energy
Which of the following is NOT correct regarding friction?
If a pump can raise 200 liters of water through a height of 300 meters in one minute, how much work can it do in one hour?
Which of the following is an example of kinetic energy?
How much kinetic energy does a 160 g cricket ball have when it is thrown at a speed of 22 m/s?
The movement of birds is an example of _______.
