According to law of triangle of forces______________?
A. three forces acting at a point will be in equilibrium
B. three forces acting at a point can be represented by a triangle, each side being proportional to force
C. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibr
D. if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
E. none of the above
The unit of power in S.I. units is______________?
A. newton meter
B. watt
C. joule
D. kilogram meter/sec
E. pascal per sec
Forces are called coplanar when all of them acting on body lie in________________?
A. one point
B. one plane
C. different planes
D. perpendicular planes
E. different points
Effect of a force on a body depends upon________________?
A. magnitude
B. direction
C. position or line of action
D. all of the above
E. none of the above
A force is completely defined when we specify________________?
A. magnitude
B. direction
C. point of application
D. all of the above
E. none of the above