A player hits a tennis ball into the air with an initial velocity of 32 m/s at 35 from the vertical. How fast is the ball moving at the highest point in its trajectory if effects of air are negligible?
What will be an ideal response?
Question 2
The first generation of strongly interacting particles consists of
A) the up quark and the down quark.
B) the proton and the neutron.
C) the up quark and the gluon.
D) the up quark and the electron.
E) the electron and the electron neutrino.
