Calculate the velocity of: A bus travelling through town, with a mass of 5040 kg and kinetic energy of
493,900 J.

V=196

Explanation:

Explanation:

mathematically,

kinetic \: energy \: = \frac{1}{2} m {v}^{2}kineticenergy=

2

1

mv

2

where m= mass

and v=velocity

given that,

kinetic energy=493900J

mass =5040kg

making velocity the subject

v = \sqrt{ \frac{2 \times kinetic \: energy}{mass} }v=

mass

2×kineticenergy

substitute their values in the formula

v = \sqrt{ \frac{2 \times 493900}{5040} }v=

5040

2×493900

v = \sqrt{ \frac{987800}{5040} }v=

5040

987800

v = \sqrt{196}v=

196

v = 14m {s}^{ - 1}v=14ms

−1

Thus the velocity is 14meters per second