Answer:
18.43m
Explanation:
At the initial stage, the car accelerates at 2.0 m/s² for 6.7 seconds, to get the velocity of the car at this point, we will use the equation of motion;
v = u + at
v = 0+(2.0)(6.7)
v = 13.4m/s
The velocity of the car during this time is 13.4m/s.
Also, if the car slows down at a rate of 1.5m/s², we can also calculate the time it took for the car to decelerate (check the attachment for diagram).
v = u+at
v = 0
u = 13.4m/s
a = -1.5m/s² (deceleration is negative acceleration)
0 = 13.4+-1,5t
-13.4 = -1.5t
t = 13.4/1.5
t = 8.93s
Hence it took the car 8.93s to slow down for the next stop sign.
To calculate how far apart the stop signs are, we need to calculate the total distance AD according to the diagram
Distance covered = AD = 18.43m
HENCE THE STOP SIGNS ARE 18.43m apart
Well the block will still have to deal with gravitational force. So here’s my prediction: Although the block is being dropped at different heights it will accelerate at the same speed no matter what and this is due to the earths gravitational energy (9.8m/s^2 or roughly 10m/s^2) so the only thing that will change is the height that the object is dropped.
Answer:
That's the answer
Explanation:
If u need explanation I can. In the comments. I hope this satisfies you.
I also hope that u will make this the brainliest answer.
Have a nice day...
The temperature rises of in the block if the current flows for 10 minutes is, 34.78K.
To find the answer, we need to know about the power of the electric heater.
<h3>How to find the temperature rise of in the block if the current flows for 10 minutes?</h3>
- We have given with the variables,
- We have an expression the heat given to the system as,
ΔT
- We have to find the temperature rise ΔT,
ΔT
Thus, we can conclude that, the temperature rises in the block if the current flows for 10 minute is 34.78K.
Learn more about the power of the electric heater here:
brainly.com/question/28050631
#SPJ1