F = ma
Physics Questions Answers This is the equation of Newton’s Second Law of Motion . Here F is the force applied on the body, m is the mass of the body which is inversely proportional to the applied force and a is the acceleration produced in the body by the force and it is directly proportional to the applied force. Examples of Newton’s Second Law of Motion Example No. 1 Suppose a body of Mass 20 kg is moving by applying a Force of 40 N, then what is the acceleration of the body? We know that: F = ma a = F / m a = 40 / 20 =2 a = 2m/s 2 Hence Acceleration is 2ms -2 and it is produced in the body when a force of 40 N is applied on the mass of 20 Kg. Example No. 2 Suppose a body of Mass 20 kg is moving by applying a Force. The body is moving with an acceleration of 2ms -2 , then what Force (F) was applied on body? We know that: F = ma F = 20 x 2 F = 40 N Hence Force is 40 N and it is a...