1. What is terminal velocity?
a. The highest speed an object reaches because of unbalanced forces
b. The highest speed an object reaches because air resistance offsets gravity in the real world
c. When an object reaches its final velocity of zero
d. None of these
d. None of these
2. When speed and direction remain the same throughout a motion, this is called?
a. Accelerated motion c. Changing velocity
b. Constant motion d. Changing motion
3. When an object falls , what happens?
a. It accelerates at a constant rate until it hits the ground.
b. It accelerates at a non-constant rate until it hits the ground.
c. It accelerates at a constant rate until it reaches terminal velocity.
d. It accelerates at a non-constant rate until it reaches terminal velocity.
d. It accelerates at a non-constant rate until it reaches terminal velocity.
4. The change in velocity in a given time period is?
a. Vi b. Vf c. a d. d
5– 7 A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from? (3 points )
8 – 10. What is the velocity of a ball that has been dropped off a cliff after 5 seconds?
NEED IT KNOW!!!!
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Answer:
1 c answers ok understood bye
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