Question

a car with a mass of 1600 kg as kinetic energy of 125000 Joule.
how fast it is moving?​

Answer 1

Hey friend ❤️

Refer to the attachment above

Answer 2

Answer:

The velocity with which car moves $= 12.5m/s$

Explanation:

Given,

Mass of body $=1600kg$

Kinetic energy of body $K.E = 125000Joule$

Let the body is moving with velocity $v$.

$K.E =$ $\frac{1 }{2}mv^{2}$

$125000 = \frac{1}{2} mv^{2} \\125000 = \frac{1}{2} (1600)v^{2} \\125000 = 800v^{2} \\v^{2} =\frac{125000}{800} \\v^{2}= 156.25\\v = \sqrt{156.25} \\v = 12.5m/s$

Therefore, The velocity with which car moves $= 12.5m/s$

#SPJ2