6. If the work done by a body on application of a constant force is directly proportional
to the distance travelled by the body, express this in the form of an equation in two
variables and draw the graph of the same by taking the constant force as 5 units. Also
read from the graph the work done when the distance travelled by the body is
(i) 2 units
(ii) 0 unit
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Bhriti182
Bhriti182
19.03.2017
Math
Secondary School
+5 pts
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If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an equation in two variables and draw the graph of the same by taking the constant force as 5 units. Also read from the graph the work done when the distance travelled by the body is
1) 2 units
2) 0 units
2
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Hriday0102
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x = force
y = distance
x = y. is the equation in two variable
work done = F × d
so , 1) 2×2 = 4 units
2) 0×0 = 0 units.
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Let work done be y and distance be x.
Given : Constant force = 5 units
Work done by a body on application of a constant force is directly proportional to the distance travelled by the body.
i.e.
k=Constant force = 5
Then, y=5x
For graph,
Put x=0,we have y= 5(0)=0
Put x=1,we have y=5(1)=5
Put x=2,we have y=5(2)=10
Points are (0,0) , (0,5) and (2,10)
If diatance travelled is 2 units than work done is 10 units.