Teaching HPSC Lecturer (Technical) Mock Test 2024 Engineering Mechanics Impact and Virtual Work Impact
Which of the following is NOT true?
1
For direct impact of two bodies, coefficient of restitution is the ratio of relative velocity of approach of the two bodies to their relative velocity of separation
2
Conservation of angular momentum implies that total angular momentum of a system remains constant unless acted on by an external torque
3
Conservation of linear momentum in a given direction implies that the sum of external forces in that direction is zero
4
The coefficient of friction is independent of area of contact
5
Question Not Attempted