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ron360
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Pressure problem -- Impulse of object striking a head
1. 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 4.20 kg sculpture that is alleged to have fallen off a bookcase. The sculpture presumably fell a distance of 1.43 m and the corner that struck him had an area of 0.25 cm2. If the time for the sculpture to stop was 1.00 ms, the pressure on his temple, in N/m2, was...
2. i know pressure is : p=F/A
A(area)= 2.5*10^(-5)m^2
and the answer is p=8.88*10^(8)N/m^2
but i can't get force in any way
i know its F=ma, but whatever i try doesn't work. please help.
1. 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 4.20 kg sculpture that is alleged to have fallen off a bookcase. The sculpture presumably fell a distance of 1.43 m and the corner that struck him had an area of 0.25 cm2. If the time for the sculpture to stop was 1.00 ms, the pressure on his temple, in N/m2, was...
2. i know pressure is : p=F/A
A(area)= 2.5*10^(-5)m^2
and the answer is p=8.88*10^(8)N/m^2
but i can't get force in any way
i know its F=ma, but whatever i try doesn't work. please help.
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