Final answer:
The acceleration produced in a body of mass 10 kg when a force of 20 N is applied to it is calculated using Newton's second law, resulting in 2 m/s², which is option A.
Step-by-step explanation:
To find the acceleration (in m/s²) produced in a body of mass 10 kg when a force of 20 N is applied to it, we use Newton's second law of motion. Newton's second law states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the object's mass. This can be written as the equation F = ma, where F is the force applied to the object, m is the mass of the object, and a is the acceleration of the object.
To solve for acceleration, we rearrange the formula to a = F/m. Plugging in the numbers:
a = 20 N / 10 kg
a = 2 m/s²
Thus, the correct answer is A. 2 m/s².