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CBSE Class 11-science Answered

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Asked by Anil | 21 Jun, 2017, 05:26: PM
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Dear anilbhat32@gmail.com

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Answered by Abhijeet Mishra | 21 Jun, 2017, 07:14: PM

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CBSE 11-science - Physics
1. Explain path length and displacement with illustrations and distinguish them. 2. Define uniform velocity of an object moving along a straight line. What will be the shapes of position-time and velocity-time graphs of such a motion? Find the distance travelled by the uniformly accelerated object in one dimension in nth second. Draw velocity-time graph of a uniformly accelerated motion in one dimension and explain that the distance travelled is equal to the area under velocity-time graph. ted motion deduce the equations of motion in (i) From the velocity-time graph of uniform accelerated motion. velocity and time (ii) distance and time (iii) distance and velocity. Show that the vector addition of two vectors is different from scalar addition of two scalars. 7. What vectors. zero vector? How can you obtain zero vectors? Give examples and properties of zero It is easier to pull than to push a lawn roller. Explain with diagram. State triangle law vector. vector addition. Find analytically the magnitude direction resultant 10. State parallelogram law of vector addition. Find analytically the magnitude and direction of resultant vector, when (i) two vectors other. parallel to each-other (ii) two vectors perpendicular to each- 11. What a projectile? Give its examples. Show projected horizontally from a certain height.
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If a particle moves from point P(2,3,5) to Q(3,4,5). Its displacement vector be
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a particle start from rest and move along a straight line with uniform acceleration.the ratio of time taken to cover successive distance in the ratio 1:3 is
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if position 'x' defined a function of time as: x(t)=t*3+2t*2+3t+4 . (1) find initial position of particle (2) find velocity in time interval from to =0 at t=3 second
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A person goes to his office from his home daily at a fixed speed but today he decided to reduce his speed by 20% as a result he reaches his office 16 minute late. what's the actual time he takes to reach his office daily
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the display ment of a body is given to be proportional to the cube of time elapsed . the magnitude of the acceleration of the body is
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