Qstnid -B-3- State Two Conditions When No Work Is Done By A Force. - 04: Energy Class 8 Physics - Icse-viii-physics

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ICSE-VIII-Physics

04: Energy Class 8 Physics

with Solutions - page 3

Qstn# B-3 Prvs-Qstn Next-Qstn

#3
State two conditions when no work is done by a force.
Ans : :
Two conditions are :
i) There should be no displacement i.e. S = 0
ii) The displacement is normal to the direction of force i.e. -θ = 90°