In their discussions of SHM text books sometimes consider a thingy attached to a horizontal spring and moving horizontally on a frictionless surface, instead of the hanging thingy that we have been looking at. ;Suppose that the two springs and the two thingies are identical. Think about whether these two systems are significantly different in other respects and decide which one of the following statements is true.

চিত্রে m ভরের বস্তুটি অনুভূমিক ঘর্ষণহীন তলে সরল ছন্দিত গতিতে স্পন্দিত হচ্ছে। m = 10 kg, স্প্রিং ধ্রুবক = 30 Nm$^{-1}$

কোন অবস্থানে বস্তুটির ত্বরণ সবচেয়ে বেশি?

"The motion of a particle with a restoring force gives oscillatory motion". Which of the following force can be a restoring force for the oscillatory motion.

A mass $m$ is suspedend from the two coupled springs connected in series. The force constant for springs are $K_1$ and $K_2$. The time period of the suspended mass will be ;

The elastic potential energy of a stretched spring is given by $E=50{x}^{2}$ where $x$ is the displacement in meter and $E$ is in joule, then the force constant of the spring is