(A) Find the distance traveled along a level surface by an object with 100J of k
ID: 1488460 • Letter: #
Question
(A) Find the distance traveled along a level surface by an object with 100J of kinetic energy working against force of 10N. (B) if the mass of object in above questions is 10 Kg, Find the initial velocity of the object. (A) Find the distance traveled along a level surface by an object with 100J of kinetic energy working against force of 10N. (B) if the mass of object in above questions is 10 Kg, Find the initial velocity of the object. (B) if the mass of object in above questions is 10 Kg, Find the initial velocity of the object.Explanation / Answer
(A) the object will be travel till its energy will be 0. so the opposing force has to work 100 kJ of work.
nw let the distance travelled be x then
Fx = 100 => x = 100/10 => x = 10 m
(B) kinetic energy = 0.5 mv2 = 100
=> v = sqrt(100*2/10) = sqrt(20)
v = 4.472 m/s
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