TextBook Solutions for Uttarakhand Board Class 11 Physics Physics Part I Chapter 5 Laws Of Motion

Under what condition is the relation s=ut is correct?

State relation between impulse and momentum?

Action and reaction forces do not balance each other why?

Two billiard balls each of mass 0.05kg moving in opposite directions with speed 6m/s collide and rebound with the same speed. What is the impulse imparted to each ball due to other

How is centripetal force provided in case of the following? 

1. Motion of planet around the sun, 
2. Motion of moon around the earth. 
3. Motion of an electron around the nucleus in an atom

A Carnot engine develops 100 H.P. and operates between 270C and 2270C. Find
1) thermal efficiency
2) heat supplied
3) heat rejected?