A paper airplane moving 2.33 m/s has 0.161 J of KE. What is its mass? (Unit = kg)

Question

asked Jan 27, 2020 182k views

1 Answer

J Earls · Answer 1 · 2020-01-31T17:02:45+0000

The kinetic energy of an object is given by:

KE = 0.5mv²

KE = kinetic energy, m = mass, v = speed

Given values:

KE = 0.161J, v = 2.33m/s

Plug in and solve for m:

0.161 = 0.5m(2.33)²

m = 0.059kg