Question

An elephant exerts a clockwise torque on a merry-go-round of 5.3 Nm while a rhino exerts a counterclockwise torque of 2.8 Nm on the same merry-go-round. What is the net torque on the merry-go-round

Answer 1

Answer:2.5 Nm clockwise

Explanation:

Given

Torque exerted by Elephant $\tau _1=5.3\ Nm(CW)$

Torque exerted by rhino $\tau _2=2.8\ Nm(ACW)$

Therefore Net torque is Algebraic sum of two torques

$\tau _{net}=\tau _1+\tau _2$

Considering Clockwise to be Positive

$\tau _{net}=5.3-2.8$

$\tau {net}=2.5\ Nm$

Therefore  net torque on Merry-go-round is 2.5 Nm clockwise