3. a. Write differences between: Centripetal force and centrifugal force
b. Distance and displacement
c.Scalar and vector quantity
d. Speed and velocity
e. Velocity and acceleration
Answers
Answer:
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Answer:
A) Centripetal force is defined as, "the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation," while centrifugal force is defined as "the apparent force that is felt by an object moving in a curved path that acts outwardly away from the center.
B) Distance is a scalar quantity , that refers to the total length of the path covered by the object is called distance travelled during its motion. Displacement is a vector quantity that refers to the shortest distance from the initial position to final position.
C) scalar quantity has only magnitude, where as vector quantity has both magnitude direction.
D) Speed -
*it is the distance travelled in unit time.
*Speed is a scalar quantity.
Velocity -
*velocity is the speed of an object moving in a definite direction.
*velocity is a vector quantity.
E) Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Acceleration is also a vector quantity as it is just the rate of change of velocity.