Mastery Check Free Fall

What is the distance a ball falls after 1,2,3,4,5 seconds (assume g is rounded to 10 m/s²)?

• 10, 20, 30, 40, 50 m (meters)
• 5, 20, 45, 80,125 m (meters)
• 5, 10,15, 20, 25 m (meters)
• 10, 25, 60, 90,120 m (meters)

What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s²)?. 

• 10, 20, 30, 40, 50 m/s
• 5, 10, 15, 20, 25 m/s
• 5, 20, 45, 80,125 m
• 10,10,10,10,10 m/s

What is the acceleration of a ball that is dropped off the side of a cliff after 1,2,3,4,5 seconds? (assume g is rounded to 10 m/s²)

• 5,10,15, 20, 25 m/s²
• 10, 20, 30, 40, 50 m/s²
• 5, 20, 45, 80, 125 m/s²
• 10,10,10,10,10 m/s²

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?

• 4 seconds 
• 2 seconds 
• 6 seconds 
• 8 seconds 

A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 2 seconds? 

• 0 m/s 
• 20 m/s traveling upward
• 20 m/s traveling downward
• 40 m/s traveling downward

The change in velocity in a given time period is?

• Vi
• Vf
• a
• d

Which would fall with greater acceleration in a vacuum—a leaf or a stone?

• the leaf
• the stone
• They would accelerate at the same rate.
• It is difficult to determine without more information.

1.  An object free falls for 3.5 seconds. How far does it fall?

• 120.05 m
• 17.15 m
• 60.03 m
• 34.3 m

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be 

• less than the speed it had when thrown upwards.
• more than the speed it had when thrown upwards.
• the same as the speed it had when thrown upwards.