Specific objectives.
Motion.
Types of motion.
Translational motion.
Rotational motion.
Oscillatory motion.
Translational motion.
Distance.
Displacement.
Speed.
S = distance covered/time taken
SI units = m/s
Velocity.
V = displacement/time
SI unite = m/s
Uniform or constant velocity.
Non- uniform velocity.
Displacement = average velocity + time
Acceleration.
A = (final velocity – initial velocity) /time taken
SI units = m/s²
Zero acceleration.
Negative acceleration or deceleration or retardation.
Positive acceleration.
Uniform acceleration.
Equation of linear motion. (Uniform motion)
a = change of velocity/time
a = (V – U) /T
at = V – U
V = at + U T = (V – U)/a
S = average velocity x time.
S = Ut + ½ at2
2aS = V2 – U2
V2 = U2 + 2aS
Measurement of velocity, speed and acceleration.
Average speed = total displacement covered/total time
= perimeter/time
Velocity.
Velocity = displacement/time
EXP: TO DETERMINE THE VELOCITY OF A TROLLEY USING A TICKER TIMER.
Requirements.
Procedure.
Solution
I second = 50Hz
10Hz =0.2 seconds
D =7.6 cm
T = 0.2 seconds
V = = = 38m/s
Possible motion.
Motion under gravity.
Equation of motion under gravity.
V = U + gt
h = ut + ½ gt²
v² = U² + 2gh
V = U – gt
h = ut – ½ gt²
V² = U² – 2gh
The projectile motion.
Equation of projectile motion.
Horizontal motion.
R = ut
Vertical motion.
V = U + at V² = U² = 2gh
V = gt V² = 2gh
h = ut + ½ gt²
h = ½ gt²
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