Jennifer hits a stationary 200. gram ball and it leaves the racket at 40. m/s

If time lapse photography shows that the ball was in contact with the racket for 40. ms:
(a) What average force was exerted on the racket?
(b) What is the ratio of this force to the weight of the ball?


(a) 0.20 kN
(b) 1.0 × 102

Physics & Space Science

You might also like to view...

How is heat exchanger efficiency described?

What will be an ideal response?

Physics & Space Science

Characteristic x-ray spectra come from

A. bremsstrahlung processes for electrons close to the nucleus. B. electrons transitioning down from an outer shell replace electrons ejected from an inner shell. C. random excitations of electrons when atoms are near room temperature. D. photons scattering off of electrons, thereby losing energy and emitting radiation.

Physics & Space Science

If a force on an object is aimed opposite the direction of the object's velocity, the force does

a. no work c. negative work b. positive work d. any of the above

Physics & Space Science

A ______________ is an array of electromagnetic radiation and a ___________ is an instrument that spreads light according to color

a. prism, mirror b. lens, grating c. rainbow, prism d. spectrum, spectrograph

Physics & Space Science