Force f → = (−8.0 n)iˆ + (6.0 n)jˆ acts on a particle with position vector r → = (3.0 m)iˆ + (4.0 m)jˆ. what are (a) the torque on the particle about the origin, in unit-vector notation, and (b) the angle between the directions of r → and f → ?

Answer with Explanation:

We are given that

a.We have to find the torque on the particle about the origin.

We know that

Torque=

By using the formula

b.

Substitute the values then we get

Because

are there answer choices to this question? this seems like a question where you have options to choose from.

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)