Strength of Materials
A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal

metal is twice as dense as water
metal is twice as dense as unknown fluid
density of metal can’t be determined
metal will float in water

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Coefficient of friction is the

angle between normal reaction and the resultant of normal reaction and the limiting friction
the friction force acting when the body is just about to move
ratio of limiting friction and normal reaction
the friction force acting when the body is in motion

ANSWER DOWNLOAD EXAMIANS APP