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Two identical bullets are fired one by a light rifle and the other by a heavy rifle with the same force. Which rifle will hurt the shoulder more and why?
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1
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5703
|
September 17, 2018
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Describe Newton’s third law of motion
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0
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1402
|
March 21, 2018
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What is the relationship between mass and inertia? Explain with the help of examples
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0
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23522
|
March 21, 2018
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Derive the mathematical formula of conservation of momentum
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0
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12271
|
March 21, 2018
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Derive the mathematical relation of Newton’s second law of motion
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0
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33270
|
March 21, 2018
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Describe Newton’s first law of motion in detail, giving examples
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0
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939
|
March 21, 2018
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Why do the driver and the person seated in front seat need a seat belt?
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0
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6572
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March 21, 2018
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Describe balanced forces with the help of two examples
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0
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4121
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March 21, 2018
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Why does an athlete puts some sands or cushion on the ground while high jumping?
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0
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9575
|
March 21, 2018
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Two friends on roller-skates are standing 5 m apart facing each other. One of them throws a ball of 2 kg towards the other, who catches it
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0
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10814
|
March 21, 2018
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Give few examples of Newton’s third law of motion
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0
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9179
|
March 21, 2018
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Describe in brief an activity to illustrate the property of inertia of rest
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0
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9933
|
March 21, 2018
|
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When small boy is trying to push a heavy stone, mention various forces acting on the stone
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0
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8272
|
March 21, 2018
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Deduce Newton’s first law from the second law
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0
|
16513
|
March 21, 2018
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Water sprinkler used for grass lawns begins to rotate as soon as as the water is supplied. Explain the principle on which it works
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0
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12869
|
March 21, 2018
|
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Why does a cricket player moves his hand backward while catching the ball?
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0
|
22804
|
March 21, 2018
|
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There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia?
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0
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17012
|
March 21, 2018
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Describe our walking in terms of Newton’s third law of motion
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0
|
4097
|
March 21, 2018
|
|
Why does a boat tend to leave the shore, when passengers are alighting from it?
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0
|
7095
|
March 21, 2018
|
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Why can a small mass such as a bullet kill a person when fired from a gun?
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0
|
35427
|
March 21, 2018
|
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A bullet fired against a glass window pane makes a hole in it, and the glass pane is not cracked. But on the other hand, when a stone strikes the same glass pane, it gets smashed. Why is it so?
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0
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10054
|
March 21, 2018
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On which factors does friction depend?
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0
|
3134
|
March 21, 2018
|
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What is the ratio of SI units to CGS units of momentum? How do you measure the effect of an impulsive force on the body?
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0
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3697
|
March 21, 2018
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