The rate of change of displacement of a body is called Velocity.
Velocity The rate of change of position of a particle in a given direction is called its velocity. Thus velocity is displacement made by the body per unit time. Velocity is a vector quantity.
Speed The rate of change of position of particle irrespective of direction is called speed. It is measured by distance covered per unit time. Speed is a scalar quantity.
63) The rate of change of displacement of a body is called
Answer is:
velocity
Explanation:
Related Engineering Mechanics MCQ with Answers
Answer is:
all of these
Explanation:
Vector Quantities: Vector quantities refer to the physical quantities characterized by the presence of both magnitude as well as direction. For example, displacement, force, torque, momentum, acceleration, velocity, etc.
Linear displacement, Linear velocity and Linear acceleration all of these are vector quantities.
Answer is:
every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force
Explanation:
According to Newton's first law of motion every body continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force.
Answer is:
Newton's second law of motion
Explanation:
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as Newton's second law of motion
Answer is:
mass
Explanation:
The mass is a matter contained in a body. Mass is expressed in kilogram (kg).
The weight of a body is a force by which it is attracted towards the centre of the earth. Weight is expressed in Newtons (N).
The relation between the mass and weight of a body is given by W = m.g