Answer:
2.09 rad/s
Explanation:
Given that,
A toy car makes 4 laps in 12 s.
We need to find the angular velocity of the toy car. We need to find the angular velocity of the toy car.
4 laps = 25.13 rad
So,

So, the angular velocity of the toy car is 2.09 rad/s.
It would take you approximately an hour and 15 mins
Answer:
the answer is A. A school crossing guard raises a stop sign that weigh 10 N
Answer:
Explanation:Advatages
1..Its takes precise reading accurate
2. it is moveable because of its small weight
3.It is easy to read and can be kept inside water
Disadvantages
1. It breaks easily because of its small size
2. If broken there can be risk of exposure to mercury chemicals.