Question

Class 9 ch 11 work energy and power all formulas

Answer 1

Formulas of work, energy and power:

$\bullet \: \sf Work, w = Force \times displacement$

$\bullet \: \sf Kinetic \: energy, KE = \dfrac{1}{2} mv^2$

$\bullet \: \sf Potential \: energy, PE = mgh$

$\bullet \: \sf Work \: energy \: theorem: w = \Delta K$

$\bullet \: \sf Mechanical \: energy, E = U + K$