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Question: Answered & Verified by Expert
A car A is moving with speed 40 km h-1 along a straight line 30° north of east and another car B is moving with same speed along a straight line 30° south of east. The relative velocity of car A as observed from the car B is
PhysicsMotion In Two DimensionsNEET
Options:
  • A 40 km h-1 north-east
  • B 40 km h-1 south
  • C 40 km h-1 north
  • D 40 km h-1 south-east
Solution:
2002 Upvotes Verified Answer
The correct answer is: 40 km h-1 north


VA=40cos30o i^+20j^

VB=40cos30o i^-20j^

VAB=VA-VB=40j^=40 km h-1 north

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