Question

What is the mass of an object moving at 13 m/s with 3802.5J of energy?

Answer 1

Answer:

The mass of a moving object = m= 45kg

Explanation:

Given:

Velocity of object = v= 13m/s

Kinetic Energy = K.E = 3802.5J

Find out:  Mass of object =m=?

Solution:

USE KINETIC ENERGY FORMULA : K.E =1/2 (mv^2)

m= 2K.E/(v^2)

put values : v=13m/s ; K.E = 3802.5J

m=2(3802.5)/(13^2)

m= 7605/169

Mass of object = m= 45kg