This book has 24 chapters covering numerous problems (solved and unsolved). Problems are solved stepwise for better understanding. Some problems are solved by Vector method to make the book versatile and suitable for all universities. Wherever necessary, solutions are supported by illustrations to avoid any ambiguity. Style for presenting the matter is from easy to difficulty for clarity of subject. Chapters on overturning, skidding and load transfer of vehicles and cables using catenary curve have also been included. One unique feature of this book is one chapter "Concurrent Forces in Space," mostly not available in other books.