Question

Acceleration is
a
velocity.
b
the rate of change of displacement.
c
the rate of change of velocity.
d
displacement.
Question 10 (1 point)
A toy car is given an initial velocity of 5.0 m/s and experiences a constant acceleration of 2.0 m/s2. What is the final velocity after 6.0 s? Vf = a*t + Vi
a
12 m/s
b
16 m/s
c
10.0 m/s
d
17 m/s
Question 11 (1 point)
Acceleration due to gravity is also called
a
displacement.
b
instantaneous velocity.
c
negative velocity.
d
free-fall acceleration.

Answer 1

Here are the answers to your questions:

**Question regarding acceleration:**
The correct answer is:
**c. the rate of change of velocity.**

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**Question regarding the toy car's final velocity:**
Using the formula \( Vf = Vi + a \cdot t \), where:
- \( Vi = 5.0 \, \text{m/s} \) (initial velocity)
- \( a = 2.0 \, \text{m/s}^2 \) (acceleration)
- \( t = 6.0 \, \text{s} \) (time)

We can calculate the final velocity:

\[
Vf = 5.0 \, \text{m/s} + (2.0 \, \text{m/s}^2 \cdot 6.0 \, \text{s}) \\
Vf = 5.0 \, \text{m/s} + 12.0 \, \text{m/s} \\
Vf = 17.0 \, \text{m/s}
\]

So, the correct answer is:
**d. 17 m/s.**

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**Question regarding acceleration due to gravity:**
The correct answer is:
**d. free-fall acceleration.**

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If you have any more questions or need further assistance, feel free to ask!