1.A car changes it's speed from 5 m/s to 10 m/s in 1s.What is it's acceleration?
A.2m/s2 B.5m/s2 C.10m/s2
D.50 m/s2


2.Which of the following is the best definition of uniform acceleration ?"uniform acceleration is__________."
A.tge constant motion of an object along a straight horizontal path.
B.a type of motion where an object is moving with uniform velocity.
C.when an object 's velocity changes by an equal amount per unit time.
D.when an object is in a stationary position.​