Questions
A body of mass 3 kg hits a wall at an angle of 60° and returns at the same angle. The impact time was 0.2 s. Calculate the force exerted on the wall :
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a
1503N
b
503N
c
100 N
d
753N
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Correct option is A
F=ΔpΔt=2mvcos30∘Δt=2×3×10×3/20.2=1503NSimilar Questions
Figures I, II, III and IV depict variation of force with time. Select the figure(s) that depicts minimum impulse delivered.
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