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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 6 - Work, Energy and Power > A ball of mass m is dropped from a height h on a platform fixed at the top of a vertical spring as shown in figure. The platform is depressed by a distance x. The spring constant is (Take acceleration due to gravity =g):

A ball of mass m is dropped from a height h on a platform fixed at the top of a vertical spring as shown in figure. The platform is depressed by a distance x. The spring constant is (Take acceleration due to gravity =g):

A particle of mass 'm' at rest is acted upon by a force 'p' for a time 't'. Its kinetic energy after an interval 't' is