Question

The mass of an object with 500 J of kinetic energy moving with a velocity of 5 m/s is

kg. (Report the answer to one significant figure.)

Answer 1

The mass would be 4o, because 0.5 x 40=20 and 20 times 5 squared is 500.

Answer 2

Mass of an object, m = 40 kg

Step-by-step explanation:

It is given that,

Kinetic energy of an object, KE = 500 J

The object is moving with velocity of 5 m/s. We have to find the mass of an object. Kinetic energy is possessed due to moving body. Mathematically, it can be written as :

`KE=(1)/(2)mv^2`

`m=(2* KE)/(v^2)`

`m=(2* 500\ J)/((5\ m/s)^2)`

m = 40 kg

So, the mass of an object is 40 kg. Hence, this is the required solution.