What is the acceleration of a train moving west at a velocity of 15 m/s that slows to 5 m/s in 20 seconds

Acircle has a circumference of 28.36 units what is the diameter of the circle

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !