A rectangular wooden block has mass of 4kg. The length breadth and height of this wooden block are 50cm,25cm,10cm respectively.Findthe preeuse on the table top:
(i) when the wooden block is kept with its surface measuring 50cm x 25cm on the table
(ii)when the wooden block is kept with its surface measuring 25cm x 10cm on the table
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pressure is equal to force exerted by a object over the area which the force is acting on
-p=F/a
-To find force in this situation, find weight by multiplying mass by the acceleration due to gravity, which is 9.8m/s^2, or 10, depending on which value is used in your class syllabus
-find the area of the surface of the block on the table (in meters squared)
-divide force of weight by area of block on table
ex: a book weighs 2kg, it's surface on the table is 20cm*10cm
-first, find area in m^2 a=l*w=0.2m*0.1m=0.02m^2
-then find force of weight F=mg F=2*9.8=19.6N
so p=F/a p=19.6/0.02
p=980N/m^2=980Pa *note-unit of pressure is pascals (Pa), and it is equivalent to N/m^2
-p=F/a
-To find force in this situation, find weight by multiplying mass by the acceleration due to gravity, which is 9.8m/s^2, or 10, depending on which value is used in your class syllabus
-find the area of the surface of the block on the table (in meters squared)
-divide force of weight by area of block on table
ex: a book weighs 2kg, it's surface on the table is 20cm*10cm
-first, find area in m^2 a=l*w=0.2m*0.1m=0.02m^2
-then find force of weight F=mg F=2*9.8=19.6N
so p=F/a p=19.6/0.02
p=980N/m^2=980Pa *note-unit of pressure is pascals (Pa), and it is equivalent to N/m^2
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Answer:
F=W=m.g
F=W =4*10(considering g as 10)
F=W =40N
a)
P=F/A
P=40N/50CM*25CM
P=40N/1250cm sq
P=40N/0.125m sq
P=320 N/m sq (Pa)
similarly for case (b
Explanation:
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