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Subject: Science, asked on 27/3/17

A train is travelling at a speed of 90 km/hr. The breaks are applied.So as to produce a uniform accelaration of -0.5 m/s sq. Find how far the train goes before it is brought it is brought to rest.

Subject: Science, asked on 27/3/17

A motor starting from rest on a lake, accelerates in a straight line at a constant speed of 3 m/sq. foe 8 seconds. How far does the boat travels during this time?

Subject: Science, asked on 4/5/17

A body moves with initial velocity of 2 m/s and uniform acceleration of 3 m/s2. Calculate the velocity when it has travelled the distance of 77 m.

Subject: Science, asked on 5/10/16

Expain angular momentum and the all relative terms l.e. angular velocity, displacement,etc.

Subject: Science, asked on 8/12/15

A man rows downstream 30 km and upstream 18 km,taking 5 hours each time. the velocity of current is?

Subject: Science, asked on 1/11/15

What would be the kind of motion if there are unequal changes in unequalintervals of time ?

Subject: Science, asked on 8/10/15

a person travels a distance of 72 km in 4 hours . calculate average speed in m/s.

Subject: Science, asked on 5/9/15

u=0,a=5,t=5,v=?
 

Subject: Science, asked on 25/8/15

if a boy travelling in the city on his bicycle distances covered by him given in the following table by observing  the given graph care fully answer the question 

1)write down the type of the motion given in the graph

Subject: Science, asked on 25/8/15

A train pulling out of a station is in uniform speed True or false

Subject: Science, asked on 11/8/15

how can you say that motion is relative?explanation with examples would be appreciated.
 

Subject: Science, asked on 3/8/15

experts,
i am unable to see the video given for odometer. please tell me why is this happening or what should i do to see that video and the videos like these cannot be seen when i click upon them to see.

Subject: Science, asked on 3/8/15

↵to determine distance travelled by a car between 10 second to 20 second.
  • Draw perpendiculars on X axis, at 10 seconds and 20 seconds, which meet the line at points A and B respectively. A quadrilateral ABCD is formed as shown in the  figure below.
  • Draw a perpendicular AE from Point A on BC          Area of ABCD=Area of triangle AEB+Area of rectangle AEDC                 =1/2{AE*BE}+{AD*DC}
  • What does the area represent?
  • is the value the same between any two time intervals?

Subject: Science, asked on 3/8/15

TO DETERMINE DISTANCE TRAVELLED BY TRAIN
  • Draw perpendiculars from the pairs corresponding to the time t1 and t2 on the graphs at point P and Q so as to form rectangle PQRS.
  • What do heights PS or QR represent?
  • Now find ou the area of rectangle PQRS.
  • What does the area represent?

please explain with figure please!

Subject: Science, asked on 3/8/15

WHAT IS THE DIFFERENCE IN THE GRAPHS FOR UNIFORM AND NON-UNIFORM MOTION?

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