16. Find the mobility of the given mechanism a) -2 b) 2 c)-1 d) 1 17. Find the mobility of the following mechanism with a higher pair. 18. a) 3 b)-1 c) 1 d) 2 machine. ROLLING WHEEL is the study to know the displacement, velocity and acceleration of a part of the a. Kinematics b. Kinetics c. Statics d. All of the above 19. In Theory of machines. a. Kinematics b. Kinetics c. Statics deals with various forces when the body is stationary. d. All of the above 20. A kinematic pair consists of a. Two links b. Three links c. Four links d. Any number of links 21. A lower pair has a. Surface contact b. Line contact c. Point contact d. All of the above