The displacement ‘s’ of a point moving in a straight line is given by: s = 6 + 5t – 5, ‘s’ being in cm and ‘t’ in s. The initial velocity of the
particle is:

Which of these statements is true? a. quarks pair with leptons to form protons and neutrons. b. quarks pair with bosons to form photons. c. quarks pair with photons to form protons and neutrons. d. quarks pair with other quarks to form protons and neutrons. e. quarks pair with electrons to form protons.

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

How do we measure or think of speed in the united states?