A 75.0-kg halfback running north with a speed of 11.0 m/s is tackled by a 80.5-kg opponent running south at 7.5 m/s. The collision is perfectly inelastic. Compute the velocity of the two players just after the tackle
a. 9.2 m/s south
b. 1.4 m/s south
c. 1.4 m/s north
d. 40 m/s north
e. 9.2 m/s north
c
You might also like to view...
If the change in wavelength is less than zero, then the radial velocity tells you that the star is moving _______________ you
a. parallel to b. away from c. towards d. in circles around
How do we know what asteroids are made of?
A. The spectrum of sunlight reflected from an asteroid shows absorption features, from which we can determine its composition. B. Astronomers have landed a spacecraft on one of them and analyzed its composition. C. Astronomers have studied meteorites that originated in the Asteroid belt. D. All of these choices are correct.
A open star cluster will have a(n) _____________ turn-off point than an older star cluster
Fill in the blank(s) with correct word
A hockey puck sliding at constant velocity across the ice is
A) in equilibrium. B) nearly in equilibrium. C) is nowhere near being in equilibrium. D) none of the above