## a) What is mean by tangential velocity and tangential acceleration of a moving body?

Question
b) State the relationship of tangential velocity and the rotational speed of a body moving in circular motion by using usual notations.

## a) What is mean by the static balance and dynamic balance of a machine component.

Question
b) Four masses A, B, C and D are attached to a shaft and revolve in the same plane. The masses are 12 kg, 10 kg, 18 kg and 15 kg respectively and their radii of rotations are 40 mm, ...

## a) Briefly explain the following terms

Question
i. Coefficient of friction ii. Static coefficient of friction iii. Dynamic coefficient of friction b) Find the force required to move a load of 300 N up a rough plane, the force being applied parallel to the plane. The inclination of the plane ...

## a) Define potential energy and kinetic energy.

Question
b) A solid disc flywheel has a diameter of 400mm and a mass of 18kg. Find; i. The moment of inertia of flywheel. ii. The kinetic energy stored in the flywheel when rotating at 1050 rev/min. iii. Tangential velocity of a point in ...

## a) Explain the following parameters related to the motion of a body

Question
i. Leaner velocity and leaner acceleration ii. Angular velocity and angular acceleration b) A wheel, initially at rest, is subjected to a constant angular acceleration of 2.2rad/s 2 for 60s and is then immediately retarded until it comes to rest 80s later. ...