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A person walks up a stalled escalator in 90 sec. He is carried in 60 s, when standing on the same escalator which is now moving. The time he would take to walk up the moving escalator will be

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Important Questions on Kinematics

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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 6
A jet air plane travelling with a speed of 500 km h-1 ejects its products of combustion with a speed of 1500 km h-1 relative to the jet plane. The speed of the latter with respect to an observer on the ground is
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 7
A train of 150 m length is running towards north at a speed of 10 ms-1. A parrot flies at a speed of 5 ms-1 towards south parallel to the railway track. The time taken by the parrot to cross the train is equal to
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 8
Two trains each 50 m long, are travelling in opposite directions with respective velocities 10 ms-1 and 15 ms-1. The time of crossing is
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 9
Two cars are moving in the same direction with the same speed of 30 km h-1. They are separated by 5 km. What is the speed of a car moving in the opposite direction if it meets the two cars at an interval of 4 minute ?
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 10
A stone is thrown upwards and it rises to a height of 200 m. The relative velocity of the stone with respect to the earth will be maximum at
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 11
A bus starts from rest moving with an acceleration of 2 ms-2. A cyclist, 96 m behind the bus starts simultaneously towards the bus at 20 ms-1. After what time will he be able to overtake the bus
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 12
A train is moving towards East with a speed 20 ms-1. A person is running on the roof of the train with a speed 3 m s-1against the motion of train. Velocity of the person as seen by an observer on ground will be :
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Beta Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise (Previous Year Questions)>Q 13
A motorcycle is moving with a velocity of 80 km h-1 ahead of a car moving with a velocity of 65 km h-1 in the same direction. What is the relative velocity of the motorcyde with respect to the car?