Question

a body of mass 60kg has a kinetic energy of 7.5 × 10⁴J. find its speed

please answer with full formula​

Answer 1

Explanation:

kinetic energy k=(1/2)mv²

give ln k=7.5x10⁴J. m=60kg.

then by the above formula

7.5x10⁴J=60v²

v²=75x10³/60

v²=1.25x10³

v²=1250

v=√1250

v=35.355m/s