MCQ
If a particle moves in a circle describing equal angles in equal times, its velocity vector
- ARemains constant
- BChanges in magnitude
- ✓Changes in direction
- DChanges both in magnitude and direction
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$\text{3V}\cos\theta$
$2\text{V}\cos\theta$
$\frac{3}{2}\text{V}\cos\theta$
$\text{V}\cos\theta$
$(A)$ The resistive force of liquid on the plate is inversely proportional to $h$
$(B)$ The resistive force of liquid on the plate is independent of the area of the plate
$(C)$ The tangential (shear) stress on the floor of the tank increases with $u _0$
$(D)$ The tangential (shear) stress on the plate varies linearly with the viscosity $\eta$ of the liquid