INTRODUCTION
Mechanics deals with the motion of various types of bodies, relations of forces, mechanical properties of bodies and matter, etc. Kinematics deals with the motion of particles and rigid...
NEET COACHIG PROGRAMME, 2016-17
II PUC- BIOLOGY
UNIT-BIOTECHNOLOGY
Biotechnology may be defined the use of microorganism, plant or animal cells or their products for the welfare of mankind.”
According...
Key points:
Friction does not oppose the motion, but it opposes relative movement between the contact surfaces.
When there is no relative motion between the contact surfaces, then no friction force...