269376
A table fan, rotating at a speed of\(2400 \mathrm{rpm}\) is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
1 420
2 280
3 240
4 380
Explanation:
Number of revolutions = area under the curve
Rotational Motion
269377
The average angular velocity of the seconds hand of a watch if the seconds hand of the watch completes one revolution in 1 minute is
269378
The angular displacement of a particle is given by \(\theta=t^{3}+t^{2}+t+1\) then, its angular velocity at \(\mathbf{t}=2 \mathrm{sec}\) is ......... rads \(^{-1}\)
269376
A table fan, rotating at a speed of\(2400 \mathrm{rpm}\) is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
1 420
2 280
3 240
4 380
Explanation:
Number of revolutions = area under the curve
Rotational Motion
269377
The average angular velocity of the seconds hand of a watch if the seconds hand of the watch completes one revolution in 1 minute is
269378
The angular displacement of a particle is given by \(\theta=t^{3}+t^{2}+t+1\) then, its angular velocity at \(\mathbf{t}=2 \mathrm{sec}\) is ......... rads \(^{-1}\)
269376
A table fan, rotating at a speed of\(2400 \mathrm{rpm}\) is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
1 420
2 280
3 240
4 380
Explanation:
Number of revolutions = area under the curve
Rotational Motion
269377
The average angular velocity of the seconds hand of a watch if the seconds hand of the watch completes one revolution in 1 minute is
269378
The angular displacement of a particle is given by \(\theta=t^{3}+t^{2}+t+1\) then, its angular velocity at \(\mathbf{t}=2 \mathrm{sec}\) is ......... rads \(^{-1}\)
269376
A table fan, rotating at a speed of\(2400 \mathrm{rpm}\) is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
1 420
2 280
3 240
4 380
Explanation:
Number of revolutions = area under the curve
Rotational Motion
269377
The average angular velocity of the seconds hand of a watch if the seconds hand of the watch completes one revolution in 1 minute is
269378
The angular displacement of a particle is given by \(\theta=t^{3}+t^{2}+t+1\) then, its angular velocity at \(\mathbf{t}=2 \mathrm{sec}\) is ......... rads \(^{-1}\)
269376
A table fan, rotating at a speed of\(2400 \mathrm{rpm}\) is switched off and the resulting variation of the rpm with time is shown in the figure. The total number of revolutions of the fan before it comes to rest is
1 420
2 280
3 240
4 380
Explanation:
Number of revolutions = area under the curve
Rotational Motion
269377
The average angular velocity of the seconds hand of a watch if the seconds hand of the watch completes one revolution in 1 minute is
269378
The angular displacement of a particle is given by \(\theta=t^{3}+t^{2}+t+1\) then, its angular velocity at \(\mathbf{t}=2 \mathrm{sec}\) is ......... rads \(^{-1}\)