A Boy on a Skate Board Skates Off a Horizontal

Multiple Choice

A boy on a skate board skates off a horizontal bench at a velocity of 10 m/s. One tenth of a second after he leaves the bench, to two significant figures, the magnitudes of his velocity and acceleration are:

A) 10 m/s; 9.8 m/s².
B) 9.0 m/s; 9.8 m/s².
C) 9.0 m/s; 9.0 m/s².
D) 1.0 m/s; 9.0 m/s².
E) 1.0 m/s; 9.8 m/s².