E)F 0.51 1.0 F 4.012.0 Find the vector torque which is r XF. r-radius vector, F...

Question

Question

E)F 0.51 1.0 F 4.012.0 Find the vector torque which is r XF. r-radius vector, F force vector.

science physics

Answer 1

Answer #1

$vec{r} imes vec{F} = (0.5hat{i}+1.0hat{j}) imes(4hat{i}+2hat{j})$

$rix F = (0.5 × 2)(i × j) + (1.0 × 4)(j × i)$

i x i = j x j = 0 , i x j = k , j x i = -k

$vec{r} imes vec{F} = 1hat{k} + 4 (-hat{k})$

$3h$

Answer 2

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