A tall man of height 2 m got his head blown by a bullet of shotgun fired from 1m in front of him. The cerebellum of his brain(mass=140g) got detached with a velocity of 12m/s and made an angle of 60° with the horizontal. It reached the rooftop of a house

A tall man of height 2 m got his head blown by a bullet of shotgun fired from 1m in front of him. The cerebellum of his brain(mass=140g) got detached with a velocity of 12m/s and made an angle of 60° with the horizontal. It reached the rooftop of a house of height 6 m. Calculate the kinetic energy possessed by his blood-coated cerebellum for this occurence.(i.e ∆ KE). Also calculate the normal reaction by the rooftop if another man of mass 70 kg crushes this brain part with his feet by standing over it.( Take g=10m/s^2).

14 J , 701.4 N

23 J , 711 N

11 J , 709.66 N

55 J , 721.9 N

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