Physics
posted by Lhaedy .
At t=1.0s, a 0.60kg object is falling with a speed of 6.0 m/s. At t=2.0s, it has a kinetic energy of 25 J.
a) What is the kinetic energy of the object at t=1.0s?
b)What is the speed of the object at t=2.0s?
c) How much work was done on the object between t=1.0s and t=2.0s?

a)m=0.6, v=6
k=1/2*m*v^2
b)m=0.6, k=25
k=1/2*m*v^2
v=sqrt(2*k/m)
c)w=k_2k_1