yes
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The acceleration of a tennis ball rolling down an incline depends with two factors. The force that is applied to the tennis ball and the mass of the tennis ball will determine its acceleration.
To determine the mass of the table tennis ball, we can use Newton's second law of motion: Force = mass x acceleration. Given that the force applied is 0.02 N and the acceleration is 8 m/s^2, we can rearrange the formula to solve for mass: mass = Force / acceleration. Therefore, the mass of the table tennis ball would be 0.02 N / 8 m/s^2 = 0.0025 kg.
F = ma, or Force = mass x acceleration. We can put this into an equation. 12 N force = 8 kg mass x unknown acceleration. To get the unknown acceleration by itself, we divide both sides by 8. This leaves us with 1.5 = a. Acceleration is 1.5 ms-2
If a body is at rest, it experiences no acceleration. From what frame of reference are you observing the object? You are in a closed elevator in freefall toward earth. You have a tennis ball with you, hanging freely and motionless in front of you (disregarding the drag from air). From your frame of reference it is motionless. I am observing you and the tennis ball from the earth's surface. From my frame of reference, you and the ball are accelerating at 9.8 meters per second per second. Neither of us is wrong. But it won't go so well for you and the ball unless I beam you out, which I surely do.
Yes, weight can affect how far a catapult launches a tennis ball. A heavier weight in the catapult can generate more force and potential energy, which can result in the tennis ball being launched further. However, the weight must be balanced and optimized to ensure the catapult operates efficiently and effectively.
The main joints used in a tennis serve are the shoulder, elbow, and wrist. The shoulder generates the power and range of motion needed, the elbow helps in extending the arm for acceleration, and the wrist provides flexibility and control over the racquet. Coordination among these joints is crucial for a powerful and accurate serve.
Both tennis balls will reach the ground at the same time because acceleration due to gravity is constant for all objects regardless of their mass. The only factors that would affect their falling speed would be air resistance, but for a tennis ball and a lead-filled one, the difference in air resistance is negligible.
KE = 1/2mv2, where m is mass in kg, and vis velocity in m/s. In order for both the tennis ball and basketball to have the same amount of kinetic energy, their masses and velocities would need to be such that they equal the same kinetic energy.
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