Answered

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A 200 kg object is going 4m/s. Find its kinetic energy

Sagot :

KE = 1/2mv^2
     =1/2(200)(4)^2
     =100(16)
     = 1600 J

hamzaahmeds

Answer:

The Kinetic Energy of the given object of mass 200 kg, traveling at 4 m/s is found to be 1600 J (OR) 1.6 KJ.

Explanation:

The generalized formula to find the Kinetic Energy of a body, that is in motion, is as follows:

Kinetic Energy = K.E = (1/2)mv²   _____________  eqn (1)

where,

m = mass of the object = 200 kg

v = speed of the object = 4 m/s

therefore, substituting these values, in eqn (1), we find the kinetic energy of the given object, as follows:

eqn (1) =>

K.E = (1/2)(200 kg)(4 m/s)²

K.E = 1600 J

OR

K.E = (1600 J)(1 KJ/1000 J)

K.E = 1.6 KJ

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