Question

15. 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 by taking the constant force as 5 units. Also find the work done when the distance travelled by the body is 2 units. *

Answer 1

Step-by-step explanation:

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.

$y \alpha x$

$y = kx$

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.