MAHE Manipal B.Sc Nursing 2025
ApplyAccorded Institution of Eminence by MoE, Govt. of India | NAAC A++ Grade | Ranked #4 India by NIRF 2024
Speed and velocity is considered one of the most asked concept.
46 Questions around this concept.
A body travels 100 km southwest and then
A particle is moving with velocity is a constant. The general equation for its path is
A body moves along a semi-circle of radius (r) 1 m from point A to B in 3 seconds then its speed is
Which graph corresponds to an object moving with a constant negative acceleration and a positive velocity?
I. Speed
Rate of change of distance with time.
Formula-
Tips of Speed-
1. S.I. unit
2. Dimensions=
3. Speed is a scalar quantity.
E.g: A body covers a distance of 18m in 1 sec
Using the formula of speed.
II . Average Speed and Instantaneous Speed
Average Speed-
Amount of total distance covered in total time.
Formula-
Average speed
E.g. A body covers a total distance of 50 m with variable speed in 5 sec.
Average Speed = 10 m/s
Tips for average speed-
If an object or body covers s1 distance in t1 time and s2 distance in t2 time then average speed is calculated by the
Formula-
Instantaneous Speed-
It is speed at that particular instant or small interval of time.
Formula-
III. Velocity
Rate of change of displacement with time.
Formula-
Tips For velocity-
S.I. unit - m/s
Dimensions-
Velocity is a vector quantity.
Velocity is also called speed in a definite (particular) direction.
IV. Average Velocity and Instantaneous Velocity
Average Velocity-
Amount of total distance covered in total time.
Formula-
Average Velocity
Instantaneous Velocity-
It is Velocity at that particular instant or small interval of time.
Formula-
V. Uniform motion and Non uniform motion
Uniform motion-
If equal distance/displacement is covered in equal intervals of time,how small these intervals may be.
Uniform speed-If equal distance are covered in equal intervals of time.
Uniform velocity-If equal displacement are covered in equal intervals of time.
Uniform speed and Uniform velocity is same as uniform motion.
For uniform motion along a straight line, the average and instantaneous velocities have the same values.
Non uniform motion-
If equal distance/displacement is covered in unequal intervals of time.
Non uniform speed-If equal distance are covered in unequal intervals of time.
Non uniform velocity-If equal displacement are covered in unequal intervals of time.
Non uniform speed and Non uniform velocity is same as Non uniform motion
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