Question 11 (1 point)

Question

Acceleration due to gravity is also called
a
displacement.
b
instantaneous velocity.
c
negative velocity.
d
free-fall acceleration.
Question 12 (1 point)
A baseball is released at rest from the top of the Washington Monument. It hits the ground after falling for 6.00 s. What was the height from which the ball was dropped? (Disregard air resistance. g = 10 m/s2.) y = .5*g*t2
a
210.0 m
b
115 m
c
180 m
d
150.0 m

Answer 1

Question 11: The correct answer is:

• d) free-fall acceleration.

Question 12: To find the height from which the baseball was dropped, we can use the formula for the distance fallen due to gravity: \[ y = \frac{1}{2} g t^2 \]

Where:

• \( g = 10 , \text{m/s}^2 \)
• \( t = 6.00 , \text{s} \)

Plugging in the values: \[ y = \frac{1}{2} \times 10 , \text{m/s}^2 \times (6.00 , \text{s})^2 \] \[ y = \frac{1}{2} \times 10 \times 36 \] \[ y = 5 \times 36 \] \[ y = 180.0 , \text{m} \]

The correct answer is:

• c) 180 m