Question

Find the torque about the origin when a force of ∧ 3 Nj acts on a particle whose position vector is 2 mk ∧ .

Answer 1

Answer:

The torque about any point is given as:

τ=

r

×

F

Substitute the value of force and radius vector:

τ=2

k

^

×3

j

^

τ=6(−

i

^

)

τ=−6

i

^

Nm