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Yogita Ingle 6 years, 7 months ago
If the velocity of an object changes by unequal amounts in equal intervals of time, the object is said to be in non-uniform or variable acceleration e.g., if the speed of a bus travelling along a straight road increases by unequal amounts, then the bus is moving with non-uniform acceleration.
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Yogita Ingle 6 years, 7 months ago
Lami's theorem states that, if three concurrent forces act on a body keeping it in Equilibrium, then each force is proportional to the sine of the angle between the other two forces.
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1 minute of an arc = 1/60 degree
180 degree = pi radian
1 degree = pi/180 radian
therefore 1/60 of pi/180 = 1minute
0r 1 minute = pi /( 60 .180) radian
therefore 1 min . = 2.9 1.10^-4 radian
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When we drive , the frictional force between the tires and the road increases the temperature of the air inside the tire. so the increase in temperature also increases tire pressure.
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Yogita Ingle 6 years, 7 months ago
Instantaneous Acceleration- When an object is moving with variable acceleration, then acceleration of the object at any instant of time is called instantaneous acceleration. It may be also defined as the limiting value of average acceleration over an interval of time, which approaches to zero.
Instantaneous Acceleration = dv/dt
Posted by Srashti Rajput 6 years, 7 months ago
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Sia ? 6 years, 7 months ago
R=A=B=x
R2=A2+B2+ABcos{tex}\theta{/tex}
X2=x2+x2+x.xcos {tex}\theta{/tex}
X2=2x2+x2 cos {tex}\theta{/tex}
X2-2x2=x2cos {tex}\theta{/tex}
-x2=x2cos {tex}\theta{/tex}
-x2/x2=cos {tex}\theta{/tex}
-1/2=cos {tex}\theta{/tex}
(cos {tex}\theta{/tex}) =cos 60
{tex}\theta{/tex} = 60
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