1. A force F=(1.200N)+(4.300N) is exerted on a particle located at r=(8.800m)+(3.200m). What is the torque on the particle about the origin?

(41.68Nm)k (33.32Nm)k (24.32Nm)k (34.00Nm)k

2. A 78.0 kg construction worker is eating his lunch at one end of a 22.4 m long, 440. kg steel beam. The other end is bolted into the framework of a new building being constructed. What is the magnitude of the torque about the point where the beam is bolted into place?

1.1410⁵ N m 1.7110⁴ N m 6.5410⁴ N m 5.0810³ N m

3. A 618 g, 14.6 cm diameter cylinder rolls across a table at 1.80 m/s. What is the cylinder's kinetic energy?

0.501 J 1.50 J 1.00 J 0.00267 J

Pls correct answer with explanation