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What is meant by uniform speed?

Important Questions on Motion

HARD
A boat takes 2 hrs to travel 8 km and back in still water lake with water velocity of 4 kmhr, then the time taken for going upstream of 8 km and coming back is:
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C.G.S. unit of velocity is _____.
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Distance travelled by an object in unit time is referred to as?

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A motor ship covers the distance of 300 km between two localities on a river in 10 hrs downstream and in 12 hrs upstream. Find the flow velocity of the river assuming that these velocities are constant. 
 
MEDIUM
The magnitude of average velocity of a car is equal to its average speed when it is moving in a _____.
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The S.I. unit of velocity is _____.
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For a uniform acceleration body with initial and final velocities as u (ms-1) and v (ms-1), the average velocity is:
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The rate of change of displacement with time is :-
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The _____ of an object is the distance travelled per second by the object in a specified direction.
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Rate of change of displacement is called ____________ .
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A quantity has a value of -8.0 m/ s. It can be said as
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The rate of change of displacement with time is called _____. 
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Which of the following curves do not represent motion in one dimension? (v = velocity, t = time)
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SI unit of velocity is 
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Speed with direction is?

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If an object travels equal distances in equal intervals of time along a particular direction, the object is said to be moving with a _____.
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In the velocity-time graph, AB shows that the body has _____.

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For an object moving with uniform acceleration, the velocity-time relationship can be represented by equation?
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Where does the coin fall, when a passenger in a train moving with a constant speed, tosses a coin,
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The distance travelled per second by a moving object in a particular direction is called its_____.