A pulley system has three pulleys. A load of 120 N is overcome by applying an effort of 50 N. Calculate the mechanical advantage of this system.

A pulley system has a velocity ratio of 4 and an efficiency of 90%, calculate: The mechanical advantage of the system.

The pulley system drawn lifts a load of 150 N when an effort of 60 N is applied. Find its mechanical advantage.

The pulley system drawn lifts a load of 150 N when an effort of 60 N is applied. Find its mechanical advantage.

A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in downward direction to raise a load of 4500 N, calculate: (a) the mechanical advantage, (b) the velocity ratio, and (c) the efficiency of the system

A pulley system has a velocity ratio 3. draw a diagram showing the point of applicationi and direction of load (L), effort (E) and tension (T). It lifts a load of 150 N by an effot of 60 N. calculate its mechanical advantage. Is the pulley system ideal ? Give reason.

In a block and tackle system consisting of 3 pulleys, a load of 75 kgf is raised with an effort of 25 kgf. Find : (i) the mechanical advantage, (ii) the velocity ratio, and (iii) the efficiency.

Draw a diagram of a pulley system of velocity ratio 4. Calculate its mechanical advantage efficiency is 90%.

A woman draws water from a well using a fixed pulley. The mass of bucket and water together is 6 kg. the force applied by the woman is 70 N. calculate the mechanical advantage. (Take g= 10ms^(-2) )