Question

a ball of mass 0.25kg is moving horizontally with a uniform velocity of 25m/s . calculate the kinetic energy possessed by the vall

Answer 1

Answer :


$given \: mass \: = \: 0.25kg \\ \\ given \: velocity \: = \: 25ms {}^{ - 1} \\ \\ = > \: as \: we \: know \: that .. \\ \\ = > \: kinetic \: energy \: = \: \frac{1}{2} m {v}^{2} \\ \\ = > \: kinetic \: energy \: = \: \frac{1}{2} \times 0.25 \times {25}^{2} \\ \\ = > \: \frac{1}{2} \times \frac{1}{4} \times {25}^{2} \\ \\ = > \: \frac{25 {}^{2} }{8} \\ \\ = > \: \frac{625}{8} \\ \\ = > \: 78.125$



Therefore, Kinetic Energy possessed by the ball = 78.125 J