Question

A bus is travelling through town, with a mass of 5040kg and kinetic energy of 493900J. How fast is it travelling?​ ​

Answer 1

here,

m = mass

v = velocity

given,

kinetic energy = 493900J

mass = 5040kg

$velocity = \: \: \sqrt{2 \times kinetic \: energy \div mass}$

$velocity = \sqrt{2 \: \times 493900 \div 5040}$

$velocity = \sqrt{987800 \div 5040}$

$velocity = \sqrt{196}$

$velocity = 14m/sec$

hope helpful...