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CBSE Class 11-science Answered

The velocity of a particle moving on the x-axis is given by v=x^2+x, where x is in m and v is in m/s. What is its position when its acceleration is 30 m/s^2
Asked by Anil | 18 Jun, 2017, 07:59: PM
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begin mathsize 12px style Velocity space of space the space particle space is straight v open parentheses straight x close parentheses equals straight x squared plus straight x Acceleration space is straight a equals dv over dt equals dv over dx cross times dx over dt equals straight v dv over dx space space space space space space space space space space space space space space space space space space space space space space space space left parenthesis since space dx over dt equals straight v right parenthesis therefore straight a equals open parentheses straight x squared plus straight x close parentheses straight d over dx open parentheses straight x squared plus straight x close parentheses equals open parentheses straight x squared plus straight x close parentheses open parentheses 2 straight x plus 1 close parentheses therefore straight a equals 2 straight x cubed plus straight x squared plus 2 straight x squared plus straight x equals 30 space left parenthesis given right parenthesis therefore 2 straight x cubed plus 3 straight x squared plus straight x equals 30 Solving space this space we space get space straight x equals 2 space straight m end style
Answered by Romal Bhansali | 01 Nov, 2017, 01:54: PM
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CBSE 11-science - Physics
.A SHM is expressed by the equation x = A cos (ωt + φ) and the phase angle φ =0. Draw graphs to show variation of displacement, velocity and acceleration for one complete curve in SHM.
Asked by sy123946 | 07 Apr, 2024, 04:23: PM
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CBSE 11-science - Physics
the dimension of stopping potential vo in photoelectric effect in units of plank's constant 'h',speed of light 'c' and gravitational constant 'G' and ampereA
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
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CBSE 11-science - Physics
In this que while solving it we take D F of alpha =D.F of beta.Why is it so?
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Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
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CBSE 11-science - Physics
In physics if 2 quantities are dimensionless then their dimensional formula are equal?
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
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CBSE 11-science - Physics
7. State the relation between maximum range and maximum height of the projectile if the angle of projection is 45 deg
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
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CBSE 11-science - Physics
The second overtone of a pipe closed at one end has the same frequency as the third overtone of a pipe open at both ends. Compare the length of the pipes
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
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CBSE 11-science - Physics
two forces whose magnitude are in the 3:5 give a resultant f Jatio 3:5 give 20 N. If fac 20. It fue angle of thread indination of each face find Magnitude
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Asked by vinitdubey7735 | 14 Mar, 2024, 11:21: AM
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CBSE 11-science - Physics
Q17. The velocity time relation of an electron starting from rest is given by v = kt where k = 6m / (s ^ 2) Calculate the distance traversed in 2 sec. 122
Asked by om636694 | 04 Mar, 2024, 09:10: PM
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CBSE 11-science - Physics
pressure of a gas in a closed cylinder is expressed in the following manner p=pa+hpg identity the expression for absolute pressure and gauge pressure
Asked by rajuinwati12 | 04 Mar, 2024, 09:22: AM
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CBSE 11-science - Physics
Power unit
Asked by rosysahu678 | 02 Mar, 2024, 06:09: PM
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