238) The inertia force is equal to the accelerating force in magnitude, but opposite in direction.

239) A slider moving on a fixed link having constant radius of curvature will have its instantaneous centre at the centre of the circle.

240) According to Kennedy's theorem, if three bodies move relatively to each other, their instantaneous centres will lie on a

241) The tangential component of acceleration of the slider with respect to the coincident point on the link is called coriolis component of acceleration.

242) When two links are connected by a pin joint, their instantaneous centre lies