Question

An object moving with a speed of 35 m/s and has a kinetic energy of 1500 J, what is the mass of the object?

Answer 1

Step-by-step explanation:

K.E = 1/2 mv^2

K.E = 1500

m = ? v = 35m/s

1500 = 1/2 x m x 35^2

1500 = 1/2 x m x1225

multiply through by 2

1500 x 2 = 1 x 2(1225m)

3000 = 2450m

divide through by 2450

m = 1.23g or

m = 1.23 x 1000

m = 1230kg