Physics-
General
Easy
Question
A person travels along a straight road for the first half time with a velocity 
and the next half time with a velocity 
The mean velocity 
of the man is
The correct answer is:
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A boat takes two hours to travel 8 km and back in still water. If the velocity of water 4 
, the time taken for going ups tream 8km and coming back is
A boat takes two hours to travel 8 km and back in still water. If the velocity of water 4 , the time taken for going ups tream 8km and coming back is
Physics-General
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A cat moves from 
to 
with a uniform speed 
and returns toX with a uniform speed 
. The average speed for this ground trip is
A cat moves from to with a uniform speed and returns toX with a uniform speed . The average speed for this ground trip is
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Acceleration of a particle changes when
Acceleration of a particle changes when
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A particle starts from rest, acceleration at 
for 
and then goes with constant speed for 
and then decelerates at 
till it stops. What is the distance travelled by it
A particle starts from rest, acceleration at for and then goes with constant speed for and then decelerates at till it stops. What is the distance travelled by it
Physics-General
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One car moving on a straight road covers one third of the distance with 
and the rest with 
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One car moving on a straight road covers one third of the distance with and the rest with . The average speed is
Physics-General
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From the top of tower, a stone is thrown up. It reaches the ground in 
second. A second stone thrown down with the same speed reaches the ground in 
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The numerical ratio of displacement to the distance covered is always
The numerical ratio of displacement to the distance covered is always
Physics-General
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A river is flowing from 
to 
with a speed of 
. A man can swim in still water with a velocity 
. In which direction should the man swim so as to take the shortest possible path to go to the south
A river is flowing from to with a speed of . A man can swim in still water with a velocity . In which direction should the man swim so as to take the shortest possible path to go to the south
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The displacement of a particle undergoing rectilinear motion along the 
-axis is given by 
. The acceleration of the particle when its velocity is zero is
The displacement of a particle undergoing rectilinear motion along the -axis is given by . The acceleration of the particle when its velocity is zero is
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An aeroplane files 
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Physics-General
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Two bodies are thrown simultaneously from a tower with same initial velocity 
: one vertically upwards, the other vertically downwards. The distance between the two bodies after time 
is
Two bodies are thrown simultaneously from a tower with same initial velocity : one vertically upwards, the other vertically downwards. The distance between the two bodies after time is
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The acceleration 
in 
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where is the time. If the particle starts out with a velocity 
at 
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is
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What is the relation between displacement, time and acceleration in case of a body having uniform acceleration
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Which graph represents the uniform acceleration
Which graph represents the uniform acceleration
Physics-General
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A particle is thrown vertically upwards. If it velocity at half of the maximum height is 
, then maximum height attained by it is (Take 
)
A particle is thrown vertically upwards. If it velocity at half of the maximum height is , then maximum height attained by it is (Take )
Physics-General
