Question

An object has a kinetic energy of 35j and a mass of 24j kg,how fast is the object moving?

Answer 1

Answer:

v = 1.7 m/s

Explanation:

We have,

The kinetic energy of the object is 35 J

Mass of the object is 24 kg

It is required to find the speed of the object. If v is the velocity, then kinetic energy is given by :

$E=\dfrac{1}{2}mv^2$

or

$v=\sqrt{\dfrac{2E}{m}} \\\\v=\sqrt{\dfrac{2\times 35}{24}} \\\\v=1.7\ m/s$

So, the speed of the object is 1.7 m/s.