Understanding the Concepts
* Work: Work is done when a force causes an object to move a certain distance.
* Force due to gravity: The force acting on an object due to gravity is its weight, calculated as mass (m) times acceleration due to gravity (g).
* Formula: Work (W) = Force (F) x Distance (d)
Calculations
1. Calculate the force:
* Force (F) = mass (m) x acceleration due to gravity (g)
* Assuming g = 9.8 m/s² (standard acceleration due to gravity)
* F = 4.5 kg * 9.8 m/s² = 44.1 N (Newtons)
2. Calculate the work:
* Work (W) = Force (F) x Distance (d)
* W = 44.1 N * 10 m = 441 Joules (J)
Answer: The work done in lifting the object is 441 Joules.