Forces

• To calculate the force, use the formula: $Force\ =$$\ Mass\ x\ Acceleration$
• Force is measured in Newtons
• 1 Newton is the amount of force needed to give 1kg an acceleration of 1m/s $^2$
• A force may produce a change in size and shape of a body, give an acceleration or deceleration or a change in direction depending on the direction of the force.
• The resultant of forces acting in the same dimension will be their sum, provided a convention for directions is set. Therefore, the resultant of 2 forces acting in the same dimension, in the opposite direction will be the difference in their magnitude in the direction of the greatest
• If there is no resultant force acting on a body, it either remains at rest or continues at constant speed in a straight line