A 120 g mass has a velocity v =(2 i +5 j ) m s^ -1 at a certain instant. K.E. of the body…
Physics · JEE Main · NTA Exams — Work, Energy and Power
A 120 g mass has a velocity \(\vec{v}=(2 \hat{i}+5 \hat{j}) m s^{-1}\) at a certain instant. K.E. of the body at that instant is
- 3.0 J
- 1.74 J
- 4.48 J
- 5.84 J
Answer
(B) 1.74 J
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