Question

An object of mass 2 kg is moving with a momentum of 20 kgms^-1 find the kinetic energy of the mass
a. 75 J
b. 150 J
c. 100 J
d. 50 J

Answer 1

Answer:

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Answer 2

Answer:

K.E = 1/2mv² = 1/2(m²v²)/m

K.E = 1/2(20²)/2

K.E = 100 J