Strength of Materials
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are

2 and V6
3 and 1 kg
V5 and V5
2 and 5

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

remain horizontal
slant down towards direction of pull
unpredictable
slant up towards direction of pull

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Kinetic friction is the

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

ANSWER DOWNLOAD EXAMIANS APP