orbital motion is a combination of forward motion and.......
free fall
air resistance
When a moving bumper car collides with a bumper car at rest, what will occur?
your bumper car will stop but you will continue to move forward until the force from your seat belt stops you
does a full shopping cart have more or less acceleration than and empty cart pushed with hard force?
less acceleration because it is heavier
they both hit the same time
Give examples of projectile motion.
balls being juggled because of mass
a frog leaping
a swimmer diving into water
why does a ball thrown horizontally follow a path that is curved downward?
gravity
an ice skater with the mass of 65kg moves along the ice with a constant velocity of 2.0 m/s. what is the skater's momentum?
130kg x meter per second
what are examples of action/reaction force pair?
a space shuttle
a rabbit's legs
a bat
why do astronaunts orbiting space appear weightless
because their body is in free fall
a cue ball rolls toward a billiard ball with a velocity of 1.0 m/s east. both have identical masses. what happens to the total momentum after the 2 balls collide?
they would have equal momentum
according to Newton's first law of motion a moving object that is not acted on by an unbalanced for will....
stay in motion
terminal velocity
the constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite is equal in magnitude and opposite in direction to the force of gravity
free fall
the motion of a body when only the force of gravity is acting on the body
projectile motion
the curved path that an object follows when thrown launched or otherwise projected near the surfaceof earth
inertia
the tendency of an object to resist being moved or if the object is moving to resist a change in speed or direction until an outside force acts on the object
momentum
a quantity defined as the product of the mass and velocity of an object