A father and his young daughter are on very clean ice, so there is very little friction (the father has more mass than the daughter). The father pushes his daughter forward and she slides away at a speed of 3 m/s. The father's velocity is
A. 3 m/s in the same direction as his daughter.
B. zero.
C. 3 m/s in the opposite direction as his daughter.
D. smaller than 3 m/s in the opposite direction as his daughter.
E. smaller than 3 m/s in the same direction as his daughter.
Answer: D
You might also like to view...
The next moon likely to be broken up into a ring is
A) Triton. B) Mimas. C) Io. D) Ganymede. E) Charon.
Which planet did Galileo observe go through a complete set of phases, thus proving the Ptolemaic model wrong?
a. Saturn b. Jupiter c. Mars d. Venus e. Mercury
A ball is dropped from a rooftop of a building and falls for two seconds. The acceleration of gravity is 9.8 m/s2 . The ball is referred to at the two-second time. The acceleration of the ball in m/s2 is
a. 0. b. 4.9. c. 9.8. d. 19.6. e. none of these.
Voltage is defined as the ______________ per unit ______________
a. charge; current b. work; current c. charge; work d. work; charge