The K.E of a particle of mass m moving with speed v is given by K=1/2mv2.if the K.E of a particle moving along x axis varies with x as K (x)=9-x2 then the region in which particle lies is?
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vickeydey:
why
now i am busy
kk
??
if u r bzy then okk
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sure
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ni8
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we know that the KE of a body cannot be negative.
so it must be ≥0.
hence from the question we have
9-x^2≥0=>x≤|3|=>-3≤x≤3.
so the correct choice is (2).
so it must be ≥0.
hence from the question we have
9-x^2≥0=>x≤|3|=>-3≤x≤3.
so the correct choice is (2).
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2
Answer:
the answer is (2). Here is the complete solution. hope it will help
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