Respuesta :
A) Ivan does work when he lifts the basket
B) Work = Force * displacement
W = 20 * 2
W = 40 Joules
So, The Amount of work he does is 40 Joules
Hope this helps!
B) Work = Force * displacement
W = 20 * 2
W = 40 Joules
So, The Amount of work he does is 40 Joules
Hope this helps!
Explanation :
It is given that,
Force acting on Ivan, [tex]F=20\ N[/tex]
Height of the basket above the ground, s = 2 m
Work done in this case would be :
[tex]W=Fs\ cos\theta[/tex]
Where
[tex]\theta[/tex] is the angle between the force and the displacement and it is equal to 0.
So, [tex]W=20\ N\times 2\ m[/tex]
[tex]W=40\ J[/tex]
Ivan does work when he lifts the basket and it is equal to 40 J.
When he carries the basket 5 m across a room to place it on a shelf, then his weight is acting vertically downwards. The angle between the force and the displacement is now 90.
So, the work done he does is 0.
