Draw a diagram of a block and tackle system of pulleys having a velocity ratio of 5. in your diagram indicate clearly the points of application and the directions of the load L and effort E. also mark the tension T in each strand.

A block and tackle system of pulleys has velocity ratio 4. Draw a neat labelled diagram of the system indicating clearly the points of application and direction of load and effort.

Draw a diagram to show a block and tackle pulley system having a velocity ratio of 3 marking the direction of load (L), effort (E) and tension (T).

A block and tackle system has velocity ratio 3. draw a labelled diagram of the system indicating the points of application and the direction of load L and effort E. A man can exert a pull of 200 kgf. (a) What is the maximum load he can raise with this pulley system if its efficiency is 60% ? (b) if the effort end moves a distance 60 cm, what distance does the load move ?

A block and tackle system has V.R. = 5. Draw a neat labelled diagram of a system indicating the direction of its load and effort.

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.

A lever of length 9 cm has its load arm 5 cm long and the effort arm is 9 cm long. (a) to which class does it belong ? (b) Draw a diagram of the lever showing the position of the fulcrum F and directions of both the load L and effort E. (c) what is the mechanical advantage and velocity ratio if the efficiency is 100%? (d) What will be the mechanical advantage and velocity ratio if the efficiency becomes 50%?

You are given four pulleys and three strings. Draw a neat and labelled diagram to use them so as to obtain a maximum mechanical advantage equal to 8. In your diagram mark the directions of load L, effort E and tension in each strand. What assumptions have you made to Obtain the required mechanical advantage ?

Figure shows a block and tackle system of pulleys used to lift a load. (a) How many strands of tackle are supporting the load ? (b) Draw arrows to represent tension T in each strand. (c) What is the mechanical advantage of the system? (d) When load is pulled up by a distance 1 m, how far does the effort end move ? (e) How much effort is needed to lift a load of 100 N?

Draw a diagram of a combination of three movable pulleys and one fixed pulley to lift up a load. In the diagram, show the directions of load, effort and tension in each strand. Find : (i) the mechanical advantage, (ii) the velocity ratio, and (iii) the efficiency of the combination, in the ideal situation.