newtons first and second
Newton’s first law dictates that if an object is in motion, it will ____, and if an object is at rest, it will ___, unless ____.
stay in motion, stay at rest, external net force acts on it
The formula for centripetal acceleration is.
v2/r or w2r
Newton’s third law states that every force is met by an equal and opposite _____.
force, reactive force, whatever
Newton’s second law says that force is the product of these two.
mass and acceleration
When a car is turning on a road, _____ acts as the centripetal force.
friction
when an object is at rest on a table, what is the force and reactive force?
gravity and normal force
If an object experiences equal forces from all sides, the net force on it is ____.
zero
When something is in orbit, the thing creating centripetal force is ____.
gravity
When a ball hits the floor, the force is exerted on the ____, and the reactive force is exerted on the ____.
If the mass of an object doubles, then to exert the same force as before its acceleration must be ____.
half
When something is spinning on a string, the thing creating centripetal force is ___.
tension
If an among us crewmate pushes on a door with a force of 20N, how much force does the door exert on the crewmate?
20N
how much force is exerted by a 5kg frog hitting something with an acceleration of 10m/s2? (give units)
50N
If the velocity of an object in circular motion increases while keeping the same path, then the ______ must increase.
centripetal force
if I exert a force on another thing and it accelerates at a slower speed than me, then it must have ____.
more mass