The system has two wheels and requires an effort of 12N to lift a load of 4kg at constant speed. Find M.A nd V.R.. Calculate work done by effort to raise load of 2m and efficiency of this machine.
QWE
To find the Mechanical Advantage (M.A) and Velocity Ratio (V.R) of the system, we need to use the formulas:
M.A = Load/Effort
V.R = Distance moved by effort/Distance moved by load
Given:
Effort = 12N
Load = 4kg
Distance moved by load = 2m
Let's calculate the M.A first:
M.A = Load/Effort
= 4kg / 12N
= 1/3
Now, let's calculate the V.R:
V.R = Distance moved by effort / Distance moved by load
= ?
To find the distance moved by effort, we need more information. Since the system has two wheels, we need to know the radius or diameter of the wheels or any other relevant information about the system.
Without this information, we won't be able to calculate the V.R or proceed further to find the work done by the effort and the efficiency of the machine. Please provide the necessary details about the system, such as the radius or diameter of the wheels, if available.