The figure below shows a wheel barrow of mass 15 kg carrying a load of

1.	The figure below shows a wheel barrow of mass 15 kg carrying a load of 30kgf with its centre of gravity at A. The points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB= 20 cm and Ac = 40 cm. Find : (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.
Answer» The figure below shows a wheel barrow of mass 15 kg carrying a load of 30kgf with its centre of gravity at A. The points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB= 20 cm and Ac = 40 cm. Find : (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.

The figure below shows a wheel barrow of mass 15 kg carrying a load of 30kgf with its centre of gravity at A. The points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB= 20 cm and Ac = 40 cm. Find : (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.

Answer»

The figure below shows a wheel barrow of mass 15 kg carrying a load of 30kgf with its centre of gravity at A. The points B and C are the centre of wheel and tip of the handle such that the horizontal distance AB= 20 cm and Ac = 40 cm.

Find : (a) the load arm, (b) the effort arm, (c) the mechanical advantage, and (d) the minimum effort required to keep the leg just off the ground.

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