Question

11 A bicycle pedal is connected to a pivot by a metal bar, as shown.
force 60N
pedal
bar
12 cm
20 cm
pivot
16 cm
The force on the pedal is 60 N downwards.
What is the moment of this force about the pivot?
A
7.2 Nm
B.
9.6 Nm
С
12 Nm
D
1200 Nm​

Answer 1

Answer:

As τ = F x L, where L = The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force.

=>τ = (60 N) x (16 x 10^-2 m)

=>τ = 9.6 N-m

=>(B)

Explanation:

hope it helps