question archive Phineas and Ferb both push on a solid brick wall at their school
Phineas and Ferb both push on a solid brick wall at their school
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Phineas and Ferb both push on a solid brick wall at their school. Phineas pushes twice as hard as Ferb pushes. Which statement below is correct?
a)Phineas and Ferb both do positive work on the wall, but Phineas does twice the work of Ferb.
b) Phineas and Ferb both do positive work on the wall, but Phineas does four times the work of Ferb.
c) Phineas and Ferb both do the same amount of positive work.
d) Phineas and Ferb both do zero work.
e) Phineas and Ferb both do positive work on the wall, but Phineas does half the work of Ferb.
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d) phineas and ferb both do zero work
Step-by-step explanation
as we know that W=f.x where W is work done
f is force applied
x is displacement
as wall doesnot move therefore displacement is 0 so work done by both will be zero
