State and define SI unit of power
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2
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2744
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June 12, 2019
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Which of the following potential energy curves in figure
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1
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2134
|
December 24, 2016
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A boy of mass 50 kg runs up a staircase of 45 steps in 9 s
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3
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16729
|
January 28, 2018
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In an elastic collision of two billiard balls
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1
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6072
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December 24, 2016
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State if each of the following statements is true or false
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1
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2988
|
December 24, 2016
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A trolley of mass 200 kg moves with a uniform speed
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1
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3309
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December 24, 2016
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Two identical ball bearings in contact with each other
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1
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1403
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December 24, 2016
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A family uses 8 kW of power
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1
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1452
|
December 24, 2016
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A bullet of mass 0.012 kg and horizontal speed 70 m
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1
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3323
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December 24, 2016
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The bob A of a pendulum released
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1
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1078
|
December 24, 2016
|
A molecule in a gas container hits a horizontal wall with speed 200 m
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1
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898
|
December 24, 2016
|
The casing of a rocket in flight burns up due to friction
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1
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4615
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December 24, 2016
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If momentum of a body increased by 300%, then what will be percentage increase in momentum of a body?
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0
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4511
|
December 24, 2016
|
A vertical spring with constant 200 N/m has a light platform on its top
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1
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3736
|
December 24, 2016
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A bolt of mass 0.3 kg falls from the ceiling of an elevator moving down with an uniform speed of 7 m
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1
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1654
|
December 24, 2016
|
A body of mass 0.3 kg is taken up an inclined plane length 10 m and height 5 m
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1
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16777
|
December 24, 2016
|
The sign of work done by force on a body is important to understand
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1
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3399
|
December 24, 2016
|
A trolley of mass 300 kg carrying a sand bag of 25 kg is moving uniformly
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1
|
3020
|
December 24, 2016
|
In a game of tug of war, one team is slowly giving way to the other
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1
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3114
|
December 24, 2016
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Find the KE of the boy of 40 kg
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1
|
874
|
November 28, 2016
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Why does a saw become warm when it is used to cut a log of wood?
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1
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5203
|
November 28, 2016
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A girl pulls a toy with a force of 100 N
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1
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1022
|
November 28, 2016
|
A vehicle of 1 tonne travelling with a speed of 60 m/s
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1
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7109
|
November 28, 2016
|
A body of mass 20 kg is raised to the top of a building
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1
|
3410
|
November 28, 2016
|
Name two forms of mechanical energy
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1
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4798
|
November 28, 2016
|
Calculate the electricity bill amount for a month of April
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1
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18235
|
November 28, 2016
|
Describe the energy changes involved in the process
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1
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789
|
November 28, 2016
|
What is commercial unit of energy?
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1
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5247
|
November 28, 2016
|
Define kinetic energy of an object
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1
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3383
|
November 28, 2016
|
Discuss whether or not work is done in the following cases
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1
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3177
|
November 28, 2016
|