Class 11 Physics simulations · Motion in a Straight Line

Relative velocity

Compare two carts moving along parallel tracks.

Open the simulation

What to notice

Relative velocity is the rate at which their separation changes.

Key relation

vA/B = vA − vB

Try this

Give both carts the same velocity.

What you can change

• Cart A velocity: -10 to 10 m/s
• Cart B velocity: -10 to 10 m/s

More in Motion in a Straight Line

• Average vs instantaneous velocity
• Reaction and braking distance
• The catch-up problem
• Motion in one dimension
• Rain and the tilted umbrella
• Vertical throw and the turning point
• Area under a v–t graph

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