A 3.00 kg toy falls from a height of 1.00 m. What will the kinetic energy of the toy be just before the toy hits the ground? (Assume no air resistance and that g = 9.81 m/s)

Question

Kaiden Craig

28 September, 04:44

+5

Answers (2)

Know the Answer?

Sean Beck · Answer 1

We have following data given

m=3.00 kg

h = 1.00 m

g = 9.81 m/s

Solution

KEf=PEg=mgh

so

KE=mgh = (3.00 kg) (9.81 m/s) (1.00 m)

KE=29.4 J

Yuliana Benson · Answer 2

Potential energy=mgh

m=3kg

g = 9.81 m/s)

h = 1.00 m

p. E = 3*9.81*1 = 29.43 Joules

(1/2) mv^2=mgh

so the kinetic energy is equal to

=29.4 J