Give an example of the motion of a body moving with a constant speed, but with a variable velocity.Draw a diagram to represent such a motion.
Fill in the blanks:
(1) The tendency of a body to resist acceleration is called …………….. .
(2) In the SI system, ……………. is the unit of force.
(3) In a collision …………… is always conserved.
(4) The motion of rocket is based on Newton’s …………… law of motion.
(5) An …………… force acting on an object brings it in motion.