Physics-
General
Easy
Question
A block of mass m moving with a velocity 
on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observing A, the net work done on the block is
A) Standing on the horizontal surface
B) Standing on the block
- zero
The correct answer is:
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A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by the normal reaction N between the block and the spring on the block is
A) Standing on the horizontal surface
B) Standing on the block
A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by the normal reaction N between the block and the spring on the block is
A) Standing on the horizontal surface
B) Standing on the block
physics-General
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A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by spring force is
A: Standing on the horizontal surface
B: Standing on the block
A block of mass m moving with a velocity on a smooth horizontal surface strikes and compresses a spring of stiffness k till mass comes to rest as shown in the figure. This phenomenon is observed by two observers To an observer A, the work done by spring force is
A: Standing on the horizontal surface
B: Standing on the block
physics-General
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A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. Let h be the maximum height from ground reached by ball after leaving track at B. Then If track makes an angle 
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A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. Let h be the maximum height from ground reached by ball after leaving track at B. Then If track makes an angle with horizontal at B then maximum height attained by ball will be :
physics-General
Maths-
If the lines 
and 
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Hence ab=18
Choice 1 is correct
If the lines and represent three consecutive sides of a rectangle then ab
Maths-General
Hence ab=18
Choice 1 is correct
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A ball is dropped on a floor and bounces back to a height somewhat less than the original height, which of the curves depicts its motion correctly?
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The velocity-time graph of a body is shown in figure. The ratio of the ... during the intervals 
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physics-General
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then C
then C
maths-General
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The distance-time graph of a particle at time 
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physics-General
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Diethyl ether on treatment with 
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Diethyl ether on treatment with in presence of sunlight gives:
chemistry-General
