Let's work through your questions one by one.
Question 11: If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
Using the formula: \[ d = v \times t \]
Here, \( v = 50 \text{ km/hr} \) and \( t = 2 \text{ hours} \).
Thus, \[ d = 50 \text{ km/hr} \times 2 \text{ hr} = 100 \text{ km} \]
The answer is d) 100 km.
Question 12: If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
Using the formula: \[ v = \frac{d}{t} \]
Where \( d = 10 \text{ m} \) and \( t = 5 \text{ seconds} \).
So: \[ v = \frac{10 \text{ m}}{5 \text{ seconds}} = 2 \text{ m/s} \]
The answer is d) 2 m/s.
Question 13: Acceleration is a change in motion over time.
This statement is True. Acceleration refers to the rate of change of velocity over time.
Question 14: Which of the following is an example of negative acceleration?
Negative acceleration, also known as deceleration, occurs when an object slows down.
The correct answer is: a) a car slowing down at a stoplight.
If you have any further questions or need additional clarification, feel free to ask!
1 answer