Question

Find the torque of a force 7i-3j-5k about the origin

Answer 1

Answer:

15.74N.m

Step-by-step explanation:

Torque is defined as →τ=→r×→F (→r is the position vector and →F is the force vector)

So, here →τ=(i−j+k)×(7i+3j−5k)=(2i+12j+10k)

So, ∣∣→τ∣∣=√4+144+100=√248=15.74N.m