B. A 3.0m length of a rod is suspended herizontally from the ceiling using two verticaf wides of equal length tied to its ends. One of the wires is made of steel of cross-sectional aren
1x10 m and the other is made of brass of cross-sectional area 4x10' Find the
position along the for at which a weight mas be hung d produce
Equal stresses in the wires(1.5 marks)
1 Equal strains in the wires.(1.5
marks)
Young's modulus of steel and brass are 2x10 Nm, and 1x10m
respectively
1.

The cement bag shown in the figure has a mass of 50 kg and the small pulley has a mass of 2 kg. if the cement bag is pulled upwards with an acceleration of 2 m/s^2, find the force f pulling the rope.

What is friction? how does it affect the motion of an object?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.