A crowbar of 200 cm long is pivoted about to its other end to displace a load of 600 N. 0.5 m Calculate MA, VR and efficiency of the crowbar.

The mechanical advantage of the crow bar is 3 while the velocity ratio is 4. The efficiency of the machine is 75%.What is the efficiency of the crow bar?We know that a machine is any device that can be used to make work a lot much easier. Thus, the machine is the object that could make less effort to be applied in making a greater work to be done as we can see in this case we have here.From the question, the pieces of information that we can get are;Distance moved by Effort = 200 cm Distance moved by load = 0.5 m or 50 cmVelocity ratio = Distance moved by Effort/Distance moved by load= 200 cm /50 cm = 4Mechanical advantage is found to be; Load/Effort= 600 N/200 N= 3Efficiency = Mechanical advantage/ Velocity ratio * 100/1= 6/4 * 100/1=3/4 * 100/1= 75%Learn more about crow bar:https://brainly.com/question/24285325#SPJ1