CBSE > Class 11 > Physics | CBSE Board | Homework Help

In physics, we often use these graphs to present objects in motion. These graphs are called motion graphs. The three most common types of motion graphs are acceleration vs. time graphs, velocity vs. time graphs and displacement vs. time graphs.

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The displacement of a particle is dependent on the time t according to the relation: x=3-5t+2tsquare . If t is measure in second and x in meter .find its acceleration at t=4s.

Posted by Yash Gangwar 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Yash Gangwar 7 years, 4 months ago

How

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Yash Pal Verma 7 years, 4 months ago

Differentiate displacement w.r.t time first you will get velocity then do that step again for accn

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Explain rocket propulsion

Posted by Anshika Patel 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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If the radius of earth is 6000km then.what will be the weight of 120kg body if taken to a height of 2000km

Posted by Roshni Patel 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

If vectorA+vectorB=vector C,then find the angle between vector A and vector B

Posted by Ahzab Khan 7 years, 4 months ago

CBSE > Class 11 > Physics

3 answers

Aman Kumar 7 years, 4 months ago

No... I think it's correct

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Ahzab Khan 7 years, 4 months ago

Not correct

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Aman Kumar 7 years, 4 months ago

It's easy... Theta= B sin theta/A+B cos theta

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A monkey is ascending a branch with constant acceleration if breaking strength is 160% of monkey's weightthen find acceleration permitted for monkey.

Posted by Sudhir Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

what is the S.I unit of force

Posted by Henry Rk 7 years, 4 months ago

CBSE > Class 11 > Physics

6 answers

K . 7 years, 4 months ago

newton not first letter capital.

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Aman Kumar 7 years, 4 months ago

It's NEWTON brother...

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Chaudhary Yash Phogat 7 years, 4 months ago

Yes, asaul and KJ are right si unit is newton

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K . 7 years, 4 months ago

But not Newton.

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K . 7 years, 4 months ago

newton

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Asaul Rahim 7 years, 4 months ago

Newton

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A ray of light goes to rear to denser what is difrence in the ray of light

Posted by Muni Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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What will be the effect on maximum height of a projectile if it's angle of projection is changed from 30 degree to 60 degree.keeping the same initial velocity of projection

Posted by Mihir Prabhakar 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 4 months ago

Maximum height will start to decrease.... As we know, at 45° range of projectile is maximum.

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A bus moving on a straight road with a speed of 126 km/h is brought to rest after 200m. Calculate(i) acceleration of the bus and(ii) Time takem by the bus to come to rest

Posted by Sakshi Singh 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Yogendra Kumar 7 years, 4 months ago

Given U=126km/h = 35m/sec and s=200m By using:v^2-u^2=2as 0^2 - 35^2 = 2a200 -1225 = 400a a = - 1225/400 a = -3.06

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Find differentiation of y= x + √x + 1/√x

Posted by Abhishek Singh 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Harshita Pandey 7 years, 4 months ago

1+1/2rootx --- 1/2x^3/2

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Why Newton's 2nd law of motion is called a real law of motion with derivation?

Posted by Subham Singha 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Find the work done by the force (3x^2+2x+1) in moving from x=3 to x=5

Posted by Nenah Ag 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is external force and internal force

Posted by Ritik Kalyan 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Ask questions gyz

Posted by Sudarshan Sharma 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Chaudhary Yash Phogat 7 years, 4 months ago

Yaar, no doubts u ask any thing about topics

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ANSWER

What is fundamental units ?

Posted by Amit Chaudhary 7 years, 4 months ago

CBSE > Class 11 > Physics

5 answers

Aman Kumar 7 years, 4 months ago

Nice.. Ishu....

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Isha Bhardwaj 7 years, 4 months ago

There are 7 fundamental physical quantities..... Mass , length , time , temperature , current, luminous intensity , amount of substance

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Sudarshan Sharma 7 years, 4 months ago

Here are 7 of em

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Sudarshan Sharma 7 years, 4 months ago

Ask more tough questions

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Isha Bhardwaj 7 years, 4 months ago

The unit which doesn't depend on any other units....

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