Question

What is the net torque acting on the wheel of radius 2m? give me the reason

Answer 1

Torque=T

Force=F

distance=r

T=r x F

T1=2*10

=20 (clockwise)

T2=2*5

=10 (anticlockwise)

but T2=-10 as its in opposite direction

net torque=T1+T2=20-10=10 (clockwise)

Ex: if we apply a 5N force on a body from right and a 3N force from left then the resultant will be 2N in the right.

similarly the resultant torque is along the direction of one which is more (ie in clockwise sense)

Answer 2

Answer:

C. 10 N m in clock wise

Explanation:

Solving for the torque in clock wise direction by using the formula

T= f x moment arm. T= 10 N x 2 m which is equal to 20 N m ,

then Torque in anti clock wise direction;

T= 5 N x 2 m which is equal to 10 N m.

Net Torque = 20(C.W) - 10(ANTI C.W)

                   = 10 N m in clock wise direction.