Did you know?
Did you know that the work done by a crane lifting a 425 kg steel beam vertically upward a distance of 66 m can be calculated? By neglecting frictional forces and considering that the beam accelerates upward at 1.8 m/s2, the work done by the crane can be determined. Work is determined by multiplying the force exerted on the object by the distance it is moved. In this case, the force can be calculated using Newton's second law (F=ma). The mass of the beam is 425 kg and the acceleration is 1.8 m/s2. By substituting these values into the equation, we find that the force exerted by the crane is 765 N. Multiplying this force by the distance moved (66 m), we can determine that the work done by the crane on the beam is 50,490 Joules. This showcases how the concepts of Newton's laws of motion and work can be applied to real-life scenarios, such as the operation of cranes.
