1) What is the formula of work when angle is involved? a) F.a. cos(θ) b) F.s. sin(θ) c) F.m. cos(θ) d) m.a.s. cos(θ) 2) Is work done when you hold a school bag and walk? a) Yes b) No 3) A force of 50N acts at 30º to displacement of 30m. Find the work done. cos (30º) = (√3 ) ∕ 2 a) 1299 Joules b) 1290 Joules c) 1300 Joules d) 1297 Joules 4) What is the direction of force and displacement if the work done is negative? a) both are in the same direction b) both are perpendicular to each other c) both are in the opposite direction d) both are parallel to each other

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