Effort distance: It is the distance over which a force is applied or exerted in order to move an object or overcome resistance.
Load distance: It refers to the distance over which the load or resistance is moved or lifted.
Work input or input work: It is the work done or energy supplied to a system or machine to perform a task or overcome a resistance. It is calculated by multiplying the force applied on an object by the distance through which the force is applied.
Work output or output work: It is the work done by a machine or system against a load or resistance. It is calculated by multiplying the force exerted by the machine on a load by the distance through which the force is exerted.
define the following
effort distance
load distance
work input or input work
work output or output work
3 answers
a machine was used to lift a load of 30N through a distance of 2m. the effort applied was 10N through a distance of 8m.calculate the the following;
the mechanical advantage of the machine
the work output of the machine
the velocity ratio of the machine
the work input of the machine
the efficiency of the machine
the mechanical advantage of the machine
the work output of the machine
the velocity ratio of the machine
the work input of the machine
the efficiency of the machine
To calculate the values, we can use the following formulas:
Mechanical Advantage (MA) = Load / Effort
Work Output (WO) = Load x Load distance
Velocity Ratio (VR) = Load distance / Effort distance
Work Input (WI) = Effort x Effort distance
Given:
Load = 30N
Load distance = 2m
Effort = 10N
Effort distance = 8m
Now, let's calculate the values:
Mechanical Advantage (MA) = 30N / 10N = 3
Work Output (WO) = 30N x 2m = 60 Joules
Velocity Ratio (VR) = 2m / 8m = 0.25
Work Input (WI) = 10N x 8m = 80 Joules
Efficiency (Ef) = (WO / WI) x 100%
Ef = (60 Joules / 80 Joules) x 100% = 75%
Therefore:
Mechanical Advantage of the machine = 3
Work Output of the machine = 60 Joules
Velocity Ratio of the machine = 0.25
Work Input of the machine = 80 Joules
Efficiency of the machine = 75%
Mechanical Advantage (MA) = Load / Effort
Work Output (WO) = Load x Load distance
Velocity Ratio (VR) = Load distance / Effort distance
Work Input (WI) = Effort x Effort distance
Given:
Load = 30N
Load distance = 2m
Effort = 10N
Effort distance = 8m
Now, let's calculate the values:
Mechanical Advantage (MA) = 30N / 10N = 3
Work Output (WO) = 30N x 2m = 60 Joules
Velocity Ratio (VR) = 2m / 8m = 0.25
Work Input (WI) = 10N x 8m = 80 Joules
Efficiency (Ef) = (WO / WI) x 100%
Ef = (60 Joules / 80 Joules) x 100% = 75%
Therefore:
Mechanical Advantage of the machine = 3
Work Output of the machine = 60 Joules
Velocity Ratio of the machine = 0.25
Work Input of the machine = 80 Joules
Efficiency of the machine = 75%