12) The weight of a body is due to
Answer is:
gravitational force of attraction towards the center of the earth.
Related Engineering Mechanics MCQ with Answers
13) The forces, which meet at one point, but their lines of action do not lie in a plane, are called
Answer is:
non-coplanar concurrent forces
Answer is:
acceleration
Explanation:
A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass and electric charge.
On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force, weight, acceleration and velocity.
Answer is: