Given, mass of object, m=10kg distance travelled by object, s=2m Time, t=1s According to given situation, s=ut+
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at2 ⇒s=0+
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at2 [∴u=0] s=
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at2 ⇒2=
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×a×12 a=4ms−2 Net force on the object in liquid, Fnet =ma=10×4=40N Weight of the object, w=mg =10×10=100N Upthrust force on the object, F′=w−Fnet =100−40=60N According to Archimedes' principle, Weight liquid displaced = Upthrust force ⇒m′=
