Home Preparation for National Talent Search Examination (NTSE)/ Olympiad
Chapter : 3. Work and Energy
Examples of Work
Example : 1 How much work is done by a force of 10N in moving an object through a distance of 1 m in the direction of the force ? Solution. The work done is calculated by using the formula: W = F × S Here, Force, F = 10 N And, Distance, S = 1 m So, Work done, W = 10 × 1 J = 10 J Thus, the work done is 10 joules
Example : 2 Find the work done by a force of 10 N in moving an object through a distance of 2 m. Solution. Work done = Force × Distance moved Here, Force = 10 N Distance moved = 2 m Work done, W= 10 N × 2 m = 20 Joule = 20 J