9th Class Physics Unit No. 6 Work and Energy (Exercise Solution)
UNIT No. 6 Work and Energy (Exercise Solution) 6.1 Encircle the correct answer from the given choices. i. The work done will be zero when the angle between the force and the distance is (a) 45° (b) 60° (c) 90° (d) 180° ii. If the direction of motion of the force is perpendicular to the direction of motion of the body, then work done will be (a) Maximum ...