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A man standing on a road hold his umbrella at 30° with the vertical to keep the rain away. He throws the umbrella and starts running at 10 km/hr. He finds that raindrops are hitting his head vertically, the speed of raindrops with respect to the road will be

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Important Questions on Kinematics

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 238
It is raining vertically downwards with a velocity of 3 km h-1. A man walks in the rain with a velocity of 4 km h-1. The raindrops will fall on the man with a relative velocity of
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 239
A flag on a bus is fluttering in north direction and wind is blowing in east direction. Then which of the following will be true.
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 243
A man weighing 80kg stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5 m s-2. What would be the reading on the scale? g=10 m s-2
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 244

A block is dragged on smooth plane with the help of a rope which moves with velocity v. The horizontal velocity of the block is 

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 246
A body of mass 0.1 kg attains a velocity of 10 m s-1 in 0.1 s. The force acting on the body is,
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 247

A lift is going up. The variation in the speed of the lift is as given in the graph. The height to which the lift takes the passenger is

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 248

Calculate the slope of the shown line

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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 249
The speed v of a particle moving along a straight line is given by v=t2+3t-4, where v is in m s-1 and t in seconds. Find time t at which the particle will momentarily come to rest.