MCQ
The lower surface of a cube is fixed. On its upper surface, force is applied at an angle of $30°$ from its surface. The change will be of the type
  • A
    Shape
  • B
    Size
  • C
    None
  • Shape and size

Answer

Correct option: D.
Shape and size
d
(d) There will be both shear stress and normal stress.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A cylinder of mass $1\,kg$ is given heat of $20000\, J$ at atmospheric pressure. If initially temperature of cylinder is $20\,^oC$, then work done by the cylinder will be .......$J$ (Given that Specific heat of cylinder $= 400 \,J\, kg^{-1}$, Coefficient of volume expansion $= 9 \times {10^{-5}}\,^o C^{-1}$, Atmospheric pressure $= 10^5 \,N/m^2$ and density of cylinder $9000\,kg/m^3$)
A particle is projected at angle $60^o$ with speed $10\sqrt 3 $, from the point $‘A’$ as shown in the figure. At the same time the wedge is made to move with speed $10\sqrt 3$ towards right as shown in the figure. Then the time after which particle will strike with wedge is  ........ $\sec$
A transverse wave is given by $y = A\sin 2\pi \left( {\frac{t}{T} - \frac{x}{\lambda }} \right)$. The maximum particle velocity is equal to $4$ times the wave velocity when
The stream of a river is flowing with a speed of $2\,km/h.$ A swimmer can swim at a speed of $4\,km/h.$ ....... $^o$ should be the direction of the swimmer with respect to the flow of the river to cross the river straight .
A projectile has the same range $R$ for two angles of projection. If $T_1$ and $T_2$ be the times of flight in the two cases, then $R$ is
A cricket player catches a ball of mass $120 \mathrm{~g}$ moving with $25 \mathrm{~m} / \mathrm{s}$ speed. If the catching process is completed in $0.1 \mathrm{~s}$ then the magnitude of force exerted by the ball on the hand of player will be (in SI unit):
A uniform rod of mass $m$, length $L$, area of cross-section $A$ and Young's modulus $Y$ hangs from the ceiling. Its elongation under its own weight will be
If a man at the equator would weigh $(3/5)^{th}$ of his weight, the angular speed of the earth is
A body is dropped from a certain height $h$ ( $h$ is very large) and second body is thrown downward with velocity of $5 \,m / s$ simultaneouly. What will be difference in heights of the two bodies after $3 \,s$ is ....... $m$
$Assertion :$ At a given temperature the specific heat of a gas at constant pressure. is always greater than its specific heat at constant volume

$Reason :$ When a gas is heated at constant volume some extra heat is needed compared to that at constant pressure for doing work in expansion.