Question

Calculate the mass of a body possessing 245 J of kinetic energy moving with a velocity of 10m/s.​

Answer 1

Answer:

m=4.9

Step-by-step explanation:

k=1/2(m×v^2)

245=1/2(m×100)

m=4.9

Answer 2

Answer:

If the kinetic energy of a body is 245J moving with a velocity of 10m/s its mass will be

Step-by-step explanation:

The energy of a particle in motion is known as kinetic energy

For a particle of mass(m) moving with velocity(v), the kinetic energy is given as

$KE=\frac{1}{2}mv^{2}$

From the question, we have

the kinetic energy of the body $KE=245J$

the velocity of the body $v=10m/s$

mass of the body $m=\frac{2KE}{v^{2} }$

put the values given

⇒

$m=\frac{2*245}{10^{2} }$

⇒ $m=4.9kg$