a boy is moving along a surcular path and cover a distance of 220 mtr in 5 sec and displacement of 11 mtr in 11 sec.
(1) find the total distance cover by boy ?
(2) Displacement of the boy ?
(3) Speed of boy?
(4) Velocity of the boy
plz tell me fast
Answers
Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria. The distance from a point A to a point B is sometimes denoted as.
Distance formula
d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}
d = distance
(x_1, y_1) = coordinates of the first point
(x_2, y_2) = coordinates of the second point
In everyday use and in kinematics, the speed of an object is the magnitude of the change of its position; it is thus a scalar quantity.
SI unit: m/s, m s−1
Common symbols: v
Dimension: L T−1
s = \frac{d}{t}
s = speed
d = distance traveled
t = time elapsed
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion. Wikipedia
In SI base units: m/s
Other units: mph, ft/s
Common symbols: v, v, v→
Dimension: L T−1
In geometry and mechanics, a displacement is a vector whose length is the shortest distance from the initial to the final position of a point P undergoing motion.[1] It quantifies both the distance and direction of the net or total motion along a straight line from the initial position to the final position of the point trajectory. A displacement may be identified with the translation that maps the initial position to the final position.
A displacement may be also described as a relative position (resulting from the motion), that is, as the final position xf of a point relatively to its initial position xi. The corresponding displacement vector can be defined as the difference between the final and initial positions:
{\displaystyle {s}={x_{\textrm {f}}-x_{\textrm {i}}}=\Delta {x}}{\displaystyle {s}={x_{\textrm {f}}-x_{\textrm {i}}}=\Delta {x}}
In considering motions of objects over time, the instantaneous velocity of the object is the rate of change of the displacement as a function of time. The instantaneous speed, then, is distinct from velocity, or the time rate of change of the distance traveled along a specific path. The velocity may be equivalently defined as the time rate of change of the position vector. If one considers a moving initial position, or equivalently a moving origin (e.g. an initial position or origin which is fixed to a train wagon, which in turn moves with respect to its rail track), the velocity of P (e.g. a point representing the position of a passenger walking on the train) may be referred to as a relative velocity, as opposed to an absolute velocity, which is computed with respect to a point which is considered to be 'fixed in space' (such as, for instance, a point fixed on the floor of the train station).
For motion over a given interval of time, the displacement divided by the length of the time interval defines the average velocity. (Note that the average velocity, as a vector, differs from the average speed that is the ratio of the path length—a scalar—and the time interval.)
Answer:
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