Question

A force F = ( 4i + 5 j) N , acts on a particle whose position with respect to the origin '0 of an inertial frame of reference is given by r = (5 i + 4 j ). Determine the torque acting on the particle. Answer step by step pls

Answer 1

ANSWER

given

FORCE = 4 i + 5 j
R = 5i + 4 j

Torque T = ?


T = F × R
T = (4i +5j)( 5i + 4 j)


T= 20 i + 20 j