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Why does total momentum remain unchanged in an isolated system (with no external force)?
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|
0
|
768
|
August 18, 2016
|
|
Two billiard balls each of mass 0.05 kg moving in opposite directions with a speed 6 m collide and rebound with the same speed. What is the impulse imparted to each ball due to the other?
|
|
0
|
1684
|
August 18, 2016
|
|
A force of 72 dyne is inclined to the horizontal at an angle of 60°. Find the acceleration in a mass of 9 g, which moves in a horizontal direction
|
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0
|
7515
|
August 18, 2016
|
|
Second law of motion is strictly applicable to a single point particle then how is it applied to a rigid body or a system of particles?
|
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0
|
2071
|
August 18, 2016
|
|
Vehicles stop on applying brakes. Does this phenomenon violate the principle of conservation of momentum?
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0
|
3327
|
August 18, 2016
|
|
What is the difference between absolute and gravitational units of force?
|
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0
|
5483
|
August 18, 2016
|
|
Why is it more dangerous to fall on frozen ice than on fresh snow?
|
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0
|
2945
|
August 18, 2016
|
|
What happens to a stone tied to the end of a string and whirled in a circle if the string suddenly breaks ? Explain why
|
|
0
|
3747
|
August 18, 2016
|
|
Newton's first law of motion is the law of inertia. Explain
|
|
0
|
628
|
August 18, 2016
|
|
Give three equations for the three components of vector force
|
|
0
|
1187
|
August 18, 2016
|
|
How is second law consistent with the first law?
|
|
0
|
1266
|
August 18, 2016
|
|
How does Newton's second law of motion give the concept of inertial mass?
|
|
0
|
3442
|
August 18, 2016
|
|
Give relation between dyne and newton
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|
0
|
3256
|
August 18, 2016
|
|
How many types of inertia are there?
|
|
0
|
1014
|
August 18, 2016
|
|
How many states of a body are described in Newton's first law of motion?
|
|
0
|
468
|
August 18, 2016
|
|
When a man jumps out of a boat, then it is pushed away. Why?
|
|
0
|
2750
|
August 18, 2016
|
|
When the horse suddenly stops, the rider falls in forward direction. Why ? Explain it
|
|
0
|
6217
|
August 18, 2016
|
|
A bullet of mass 0.04 kg moving with a speed of 90 m enters a heavy wooden block and is stopped after a distance of 60 cm. What is the average resistive force exerted by the block on the bullet?
|
|
0
|
16706
|
August 18, 2016
|
|
Why does a swimmer push the water backwards?
|
|
0
|
973
|
August 18, 2016
|
|
You can move a brick easily by pushing it with your foot on a smooth floor, but if you kick it then your foot is hurt Why?
|
|
0
|
925
|
August 18, 2016
|
|
According to Newton's third law of motion, every force if accompanied by an equal (in magnitude) and opposite (in direction) force called reaction, then how can a movement take place?
|
|
0
|
2400
|
August 18, 2016
|
|
An electron moving with certain velocity collides against a stationary proton and sticks to it. Is the law of conservation of linear momentum true in this case?
|
|
0
|
851
|
August 18, 2016
|
|
A bomb explodes in mid-air into two equal fragments. What is the relation between the directions of their motion?
|
|
0
|
1788
|
August 18, 2016
|
|
Will a person while firing a bullet from a gun experience a backward jerk ? Why?
|
|
0
|
572
|
August 18, 2016
|
|
Name a factor on which the inertia of a body depends
|
|
0
|
1113
|
August 18, 2016
|
|
A body of mass m is moving on a horizontal table with constant velocity. What'is the force on the table?
|
|
0
|
1237
|
August 18, 2016
|
|
When the electric current is switched off, why the blades of fan keep on moving for sometime?
|
|
0
|
1286
|
August 18, 2016
|
|
Why a one rupee coin placed on a revolving table flies of tangentially?
|
|
0
|
3365
|
August 18, 2016
|
|
Is any force required to move a body with constant velocity?
|
|
0
|
668
|
August 18, 2016
|
|
Why passengers are thrown outward when a bus in which they are travelling suddenly takes a turn around a circular road?
|
|
0
|
993
|
August 18, 2016
|