●A bus is going towards west on a straight road with a speed of 80Kmh⁻¹. A bike is coming from behind with a speed of 120 Kmh⁻¹. To the biker, the bus will appear to move with a speed of.
(a) 40 Kmh ⁻¹ towards west
(b) 40 Kmh ⁻¹ towards east
(c) 200 Kmh ⁻¹ towards west
(d) 200 Kmh ⁻¹ towards east
please answer it fast
Answers
option b is your correct answer
Given : A bus is going towards west on a straight road with a speed of 80Kmh⁻¹.
A bike is coming from behind with a speed of 120 Kmh⁻¹.
To Find : To the biker, the bus will appear to move with a speed of.
Solution:
NORTH
WEST EAST
SOUTH
Bus toward west = 80 km/hr
Bike toward west = 120 km/hr
Bus speed relative to biker = Bus Speed - Biker Speed
= 80 - 120
= - 40 km/hr West
= 40 km/hr East
To the biker, the bus will appear to move with a speed of. 40 Kmh ⁻¹ towards east
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