James combines the force of a tennis racket and his arm on a tennis ball.
I don't understand what this question is asking, and it doesn't go with any other problem, could someone try to tell what it is asking because I have no clue ;-;
It is not asking anything. Seems incomplete and a mistake.
Based on the information provided, it seems like the question is asking about the combined force exerted on a tennis ball when James hits it with a tennis racket using his arm. The question may be referring to the concept of force and how it is generated when different forces are combined, in this case, the force of the tennis racket and the force applied by James' arm.
Based on the information provided, it seems that the question is asking about how James combines the force of a tennis racket and his arm when striking a tennis ball. To better understand this, let's break it down:
When playing tennis, the force applied to the tennis ball comes from two sources: the force exerted by James' arm and the force exerted by the tennis racket. By combining these two forces, James is able to generate the overall force that is transferred to the ball upon impact.
To calculate the combined force, you need to know the individual forces contributed by James' arm and the tennis racket. This can be measured using tools such as force sensors or by estimating based on experience.
Once you have the individual forces, you can add them together to find the total force. For example, if the force generated by James' arm is measured as 50 Newtons (N) and the force exerted by the tennis racket is measured as 30 N, then the combined force would be 50 N + 30 N = 80 N.
It is important to note that the force applied to the tennis ball is not the only factor that determines the ball's movement. Other factors like angle, speed, and spin also play a role, but for the purpose of this question, we are focusing solely on the combined force.