19. Find the work done by a force of 30,000N in moving an object through a distance of 45m when: (a) the force is in the direction of motion, and (b) the force makes an angle of 40° to the direction of motion. Find the rate at which the force is working at a time when the velocity is 2m/sec. Scalars and Vectors problem no 19. Sindh Textbook Board (stb) problems

19. Find the work done by a force of 30,000N in moving an object through a distance of 45m when: (a) the force is in the direction of motion, and (b) the force makes an angle of 40° to the direction of motion. Find the rate at which the force is working at a time when the velocity is 2m/sec.