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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 240
Rain seems to be falling to a person sitting in a bus moving uniformly eastwards with 10 ms-1. It appears to come from vertical and hit the bus windows at a velocity 20 ms-1. Find the velocity of rain drops with respect to ground.
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 241
Rain is falling vertically with a velocity of 3kmh-1. A man walks in the rain with a velocity of 4kmh-1. The rain drops will fall on the man with a velocity of
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Alpha Question Bank for Medical: Physics>Chapter 4 - Kinematics>Exercise-1>Q 242
To a stationary man, rain appears to be falling at an angle 30° with the vertical. As he starts moving with a speed of 0.5 ms-1 he finds that the rain is falling vertically. Then the speed of rain with respect to  the moving man is
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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,