試題詳解

23. A police crime lab is trying to determine whether someone was murdered or died as a result of an accident. He was struck in the temple by a 4.00 kg sculpture that is alleged to have fallen off a bookcase. The sculpture presumably fell a distance of 1.80 m and the corner that struck him had an area of 0.240 cm². If the time for the sculpture to stop was 1.00 ms, take g = 10.0 m/s, the pressure on his temple, in N/m², was
(A)1.00x10⁴.
(B) 1.50x 10⁵.
(C) 1.50x 10⁶
(D) 1.00 x 10⁹.
(E) 1.25 x 10⁹