Selina Concise Physics Class 10 ICSE Solutions Force Selina ICSE Solutions for Class 10 Physics Chapter 1 Force Exercise 1(A) 1. State the condition when on applying a force, the body has: (a) the translational motion, (b) the rotational motion. Solution 1. (a) When the body is free to move it produces translational motion. (b) When the body is pivoted at a point, it produces rotational motion. 2. Define moment of force and state its S.I. unit. Solution 2. The moment of force is equal to the product of the magnitude of the force and the perpendicular distance of the line of action of force from the axis of rotation. S.I. unit of moment of force is Newton metre (Nm). 3. State whether the moment of force is a scalar or vector quantity? Solution 3. Moment of a force is a vector. 4. State two factors affecting the turning effect of a force. Solution 4. Moment of force about a point depends on the following two factors: ...
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