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Home /Doubts and Solutions/CBSE/Class 9/Physics/Motion

Motion Free Doubts and Solutions

CBSE - IX - Physics - Motion

Which of the following is more compressible sand clay or dough

Asked by indrajeetghogare 4th June 2023, 1:44 PM
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CBSE - IX - Physics - Motion

what is science

Asked by ashwathnarayana87 19th October 2021, 6:15 PM
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CBSE - IX - Physics - Motion

What is Science

Asked by santhoshsethysv 28th June 2021, 7:17 AM
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CBSE - IX - Physics - Motion

what is average velocity

Asked by rishabhgandharva 29th August 2020, 11:19 PM
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CBSE - IX - Physics - Motion

What is vector quantity and scaler quantity 

Asked by dilrajs607 28th January 2020, 10:21 AM
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CBSE - IX - Physics - Motion

A boy on a 78.4m high cliff drops a stone. One second later, he throws another stone downwards with some speed. The two stones reach the ground simultaneously. Find the speed with which the second stone was thrown.   (Acceleration due to gravity = 9.8 m/s2) 

Asked by arunk.agarwal 30th July 2016, 4:15 PM
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CBSE - IX - Physics - Motion

Is there any difference between accelerated motion and uniform acceleration?Explain your answer with examples?

Asked by abinash.gupta003 15th July 2016, 10:44 AM
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CBSE - IX - Physics - Motion

An object covers half the distance with a speed of 20m/s and the other half with a speed of 30m/s. Calculate the average speed of the whole journey.

Asked by manhas 13th June 2016, 7:06 PM
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CBSE - IX - Physics - Motion

Sir/Ma'am,please give an example for each as I have to make a working model on motion.
1-Circulatory motion
2-uniform and non uniform motion
3-Rotatory motion
4-Oscillatory motion
5-Rectilinear motion

Asked by Shawn 2nd June 2016, 7:56 PM
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CBSE - IX - Physics - Motion

  • A train starting from rest moves with a uniform acceleration of 0.2 m/s 2 for five minutes.Calculate the speed acquired and the distance travelled in this time.                      
 
  • From a station ‘X’ a train starts from rest and attains a speed of 54 km/h in 10 s, then with this uniform speed it moves for 8 minutes and then by applying brakes it stops at station ‘Y’ in 6 s.Find the distance between station ‘X’ and ‘Y’.
 
  • Draw a position-time graph and a speed-time graph for a ball thrown vertically upwardswhich comes to rest on reaching the ground.
 
  • If a ball hits the ground with velocity ‘v’, it bounces back up with velocity ‘v’. If sucha ball is dropped from a height ‘h’ above the ground, how high will it bounce ? Justify your answer.
 
  • Why does (second) 2 occurs in the unit of acceleration ?
 
  • A body moving with a velocity of 2 m/s acquires a velocity of 10m/s in 5s. Find its acceleration.
 
  • When can we say the motion of an object as uniform motion ? What can be the shape of thepath covered by a moving object to have uniform speed and uniform velocity ?

Asked by arunk.agarwal 25th May 2016, 8:43 AM
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