Assignment Questions on Newton’s third law


Tennis sport has been a popular sport globally with millions of participants; it includes multifaceted racket’s spatial movement and the human body. The assessment of motion patterns when training by the coaches is critical, especially for beginners, enhancing understanding. Tennis sport involves three types of shots; include topspin, backspin and drop shot. A drop shot has been seen to be a particular type of backspin in which the ball slows down severely. This work provides a better understanding of tennis’ biomechanical mechanisms, which positively impact novice trainees’ improvement. This study helps in the understanding of how coaches can apply Newton’s laws of motion. The three vital concepts used in the table tennis sport play a crucial role in the sport’s coaching.

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Table tennis sport is among the most popular globally. The International Sports Federation states that tennis has over 400 million participants doing this sport to appear on the list of the most active sports.  Decent patterns of motion are vital for the players to achieve outstanding performance. Tennis involves three types of shots that are topspin, backspin and drop shot. A topspin shot is made by sliding the racket up and over the ball as it collides with the ball. The backspin involves sliding the racquet underneath the ball when striking. A drop shot is a type of backspin shot in which the ball slows down severely. Biomechanics in sports aims to improve the performance of the sport.

The most known method in improving sport’ performance is by improving the techniques of the players. Biomechanics application towards improving the players’ technique occurs in two ways: trainers and coaches may utilize their mechanic’s knowledge to correct trainee’s actions to strengthen skill execution, or a biomechanics scientist may discover a more practical skill. The coaches encourage the trainees to repeat more of prescribed patterns of movement trainees in professional teams. For example, they are instructed to repeat the pre-arranged movement severally, as this helps in the construction of steady patterns of movement (Pavlov, 1927) for designated techniques. In training, the coaches apply the three Newton laws of motion to create good movement patterns that assist the players in boosting the continuity of hitting and refresh their bodies. Biomechanics is the study of the motion of living organisms with the application of mechanics science (Hatze, 1974). A tennis trainer can apply the biomechanics principles as necessary conceptual instruments.  Newton’s laws of motion contain three essential concepts that use in the tennis sport: the fundamental rules that govern the movement principles. The study will describe how Newton’s laws of motion and how they are applied in table tennis sport.


Newton’s first law: An object in motion remains in motion, and that at rest remains stationary unless an external force act on it. When playing a tennis match, Newton’s laws of motion are often in action. The utmost apparent occurrence of Newton’s first law is demonstrated by the path to be followed by the ball.  A tennis racket in the smacking of a tennis ball is an ideal example of the ing a tennis racket to strike a tennis ball is a prime example of an unstable force that acts upon a body in motion.  After hitting the tennis ball, it flies above the tennis net before getting pulled down by the gravitational force. The existence of gravity enables the tennis ball to come down; otherwise, the ball would keep on flying in a straight line. In this case, there exist two forces that are air resistance that slows down the ball’s speed and gravity which pulls it downwards.

 Newton’s second law: The acceleration of a moving object is directly proportional to the force applied and inversely proportional to the object’s mass.  For example, when a tennis ball is whacked using a racket, the question is, how much force has been exerted? Taking the racket’s weight multiplied by the speed at which the racket is swung will give us the overall force exerted.

Newton’s third law: There will be an equal and opposite reaction force for every action force.  For instance, when the ball hits the wall, the wall returns an equal force towards the opposite direction that pushes it back. Another example is when a tennis player whacks a ball, the racquet force smashing the ball and the ball’s force bashing the racquet act upon each other.  Additionally, the tennis’ action force can occur when the ball hits the ground after flying. Considering the speed and the trajectory at the landing point determines how low or high that ball will bounce. The presence of action and reaction forces the ground, and the tennis ball determines the bounce’s effect and quality.


Coaching attempts to capitalize on the player’s performance, and to do this, they need the skill that is an aspect of the biomechanics of human movement patterns. Principles of biomechanics play a vital role in improving a player’s performance and enhancing understanding to the beginners. Newton’s laws of motion have been seen to be applicable in the coaching and knowledge of table tennis.

















Hatze, H. (1974). The meaning of the term: “Biomechanics.” Journal of Biomechanics, 7, 189–190.

Pavlov, I. P. (1927). Conditioned reflexes: Courier Dover Publications.





























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