For the following questions answer them individually
Which law of motion (of Newton) gives the measure of force ?
The shear stress at the centre of a circular shaft undertorsion is
The direction of frictional force acting on a body which can slide on a fixed surface is
What strength of the material is to be considered for design of a ductile component undercyclic load ?
For any given power and permissible shear stress, the rotational speed of shaft andits diameter are correlated by the expression
The angle turned by a wheel while it starts from rest and accelerates at constantrate of 3 rad/s$$^2$$ for an interval of 20 sec is
Stress due to change in temperature developed in a bar depends upon
Strength of the beam depends on
A reversible heat engine working at the rate of 100kW has an efficiency of 20%. The magnitudes of heat transfer rate from the source and to the sink in kW would be, respectively,
The friction between objects that are stationary is called