suppose you toss a tennis ball in the air. does the kinetic energy increase or decrease as it moves higher
Added by William M.
Step 1
Kinetic energy is the energy an object possesses due to its motion, which is calculated using the formula KE = 1/2 mv², where m is the mass of the object and v is its velocity. Show more…
Show all steps
Your feedback will help us improve your experience
Susan Hallstrom and 73 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Suppose you toss a tennis ball upward. (a) Does the kinetic energy of the ball increase or decrease as it moves higher? (b) What happens to the potential energy of the ball as it moves higher? (c) If the same amount of energy were imparted to a ball the same size as a tennis ball but of twice the mass, how high would it go in comparison to the tennis ball? Explain your answers.
A ball is thrown straight up into the air. As it rises after leaving the hand, what is the relationship between the gravitational potential energy and the kinetic energy of the ball? The energy remains constant, so the gravitational potential energy and the kinetic energy each remain constant as the ball rises. The total energy remains constant, so as the kinetic energy decreases, the gravitational potential energy increases by the same amount. The kinetic energy decreases, but the gravitational potential energy does not change since the ball and the Earth do not change their masses. The total energy remains constant, so as the kinetic energy increases, the gravitational potential energy decreases by the same amount.
Adi S.
A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound are specified in tennis regulations. Tennis balls, to be acceptable for tournament play, must have a mass of 57.5 g. When dropped from a height of 2.5 m onto a concrete surface, a ball must rebound to a height of $1.4 \mathrm{m}$. During impact, the ball compresses by approximately $6 \mathrm{mm}$. The ball's kinetic energy just after the bounce is less than just before the bounce. In what form does this lost energy end up? A. Elastic potential energy B. Gravitational potential energy C. Thermal energy D. Rotational kinetic energy
Adam M.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD