Question

Bus travellling through town, with a mass of 5040kg and kinetic energy of 493900J. I need the velocity.

Answer 1

v = 14 m/s

Step-by-step explanation:

KE = 1/2mv²

493900 = (1/2)(5040)(v)²

(v)² = 493900/2520

v = √493900/2500

v = 13.9997

v = 14 m/s

Answer 2

KE=1/2*m*(v^2)
493900J=1/2*5040kg*(v^2)
v=14m/s