Pool Collision Lab

NCERT Ch 5.11 -- Momentum & Energy Conservation

Table Shape

Ht
Snd

Trail + CoM

Tap ball to select striker [S] -- Drag to aim -- Launch

Trail View -- coloured dots = ball paths. White dots = Centre of Mass (CoM). The CoM always travels in a straight line -- direct proof of momentum conservation. Launch multiple times to compare paths.

System Energy Breakdown

Heat

Sound

Friction/Air

KE: -- J

p: --

Heat: 0.00 J

Sound: 0.00 J

Friction: 0.00 J

Air Drag: 0.00 J

Coefficient of Restitution e = (v2f-v1f)/(v1i-v2i)

e=1 perfectly elastic
0<e<1 inelastic
e=0 perfectly inelastic

NCERT Equations -- live values

Momentum: --= --+ -- --

m1*v1i = m1*v1f + m2*v2f (kg m/s)

KE: ---> --dKE= -- --

0.5*m1*v1i^2 = 0.5*m1*v1f^2 + 0.5*m2*v2f^2 (J)

KE and Momentum vs Time

KE (J)

Momentum (kg m/s)

⚡ Work Done Analysis

W = ΔKE = KE_final − KE_initial | W_friction = −f·d | W_drag = −F_d·d

Energy Lost in Collisions

0.000 J

0 if elastic · grows if inelastic

Energy Lost to Friction

0.000 J

0 if friction = 0

Energy Lost to Air Drag

0.000 J

0 if air drag = 0

Net ΔKE (Current − Initial)

0.000 J

= 0 if elastic + no friction

ΔKE (Current − Initial) 0.000 J

Balls on table

Count: 3

Tap chip or ball to select striker [S]

Momentum per ball (kg m/s)

KE per ball (J)

angle

from x-axis

Per-ball Mass & Speed

Collision Type

elastic inelastic

ELASTIC

Friction

u0.00

NoneMax

Air Drag

Cd0.00

VacuumDense air