Question Text
Question 4 :
What is the expression for kinetic energy and potential energy respectively?
Question 7 :
When we want to use a machine as a speed multiplier then,
Question 9 :
How many types of motion can you observe when a rigid body acted upon by a force?
Question 10 :
The velocity ratio of a combination of n moveable pulleys with a fixed pulley is always {tex}2^n{/tex}. Is it true or false?
Question 11 :
The lever for which the mechanical advantage is less than 1 has the :
Question 12 :
A pulley system with velocity ratio 4 is used to lift a load of 150 kgf through a vertical height of 20 m. The effort required is 50 Kgf in the downward direction. Calculate the distance move by effort.
Question 13 :
The point of action of force on a rigid body is :
