The change in the kinetic energy of the cart is equal to 50 J and the final velocity is 3.16 m/s.
Kinetic energy can be defined as the energy contained by a moving body due to its motion. The change in the kinetic energy of a moving object whenever the work is done on the object.
The kinetic energy can be measured by using the formula mentioned below:
K.E. = ½mv²     where m is mass and v is velocity.
Given, the mass of the cart, m = 10 Kg
The distance moved by cart, d = 5 m
The horizontal force exerted on the cart, F = 10 N
W = F.d = 10 (5) = 50 J
Work = Change in K.E. =  ½mv²  - ½mu²  =  ½mv² Â
50 =  ½à 10 Ăv² Â
v²  = 10
v = 3.16 m/s
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