Initially system is in equilibrium. Time period of $SHM$ of block in vertical direction is
$2\pi \sqrt {\frac{m}{{3k}}} $
$2\pi \sqrt {\frac{m}{{2k}}} $
$2\pi \sqrt {\frac{m}{k}} $
$2\pi \sqrt {\frac{{2m}}{k}} $
A spring executes $SHM$ with mass of $10\,kg$ attached to it. The force constant of spring is $10\,N/m$.If at any instant its velocity is $40\,cm/sec$, the displacement will be .... $m$ (where amplitude is $0.5\,m$)
Two identical springs of spring constant $k$ are attached to a block of mass $m$ and to fixed supports as shown in figure. When the mass is displaced from equilibrium position by a distance $x$ towards right, find the restoring force.
If a spring has time period $T$, and is cut into $n$ equal parts, then the time period of each part will be
A force of $6.4\, N$ stretches a vertical spring by $0.1 \,m$. The mass that must be suspended from the spring so that it oscillates with a period of $\left( {\frac{\pi }{4}} \right)sec$. is ... $kg$
If a body of mass $0.98\, kg$ is made to oscillate on a spring of force constant $4.84\, N/m$, the angular frequency of the body is ..... $ rad/s$