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Physics - SHM Question with Solution | TestHub

PhysicsSHMOscillations and SHMMedium2 min

PhysicsMediummultiple choice

A block of mass $m$ is attached to a massless spring of force constant $k$ , the other end fixed to the wall of a truck (Figure 5.140). The block is on a smooth surface and the spring is unstretched. Suddenly the truck moves right with constant acceleration $a_{0}$ . As seen from the truck:

Options:(select one or more)

Answer:

A, B, C

Solution:

The pseudo-force $m a_{0}$ shifts the equilibrium by $m a_{0} / k$ , which is the amplitude. Energy = $\frac{1}{2} k A^{2} = \frac{m ^{2} a _{0}^{2}}{2 k}$ , so (D) is wrong.

Subject:PhysicsTopic:SHMSubtopic:Oscillations and SHM

⏱ 2m

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