Physics Calculate Acceleration Help?
can someone please help me?
Task 1:
A car accelerates evenly from a standstill to 90km-h^-1 in 8.4 seconds
- How long is the acceleration distance?
- How big is the acceleration?
Task 2:
A Berlin subway train accelerates at a speed of a=1.85m-s2 for 10 seconds. This speed is maintained constant for 38 seconds. The train then decelerates evenly to a stop speed of 65m.
Calculate the total distance traveled?
please with formula and steps thanks
(2 votes)
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1) receivable speed with m/s so the acceleration can get out correctly in m/s^2.
Then
v = a * t
S = 1/2 * a * t ^2
No, we don’t know a, so a = v/t 25 comes out and then don’t know
You gave two greetings
t = 8.4 seconds
v = 90km/h = 90000m/3600s = 25m/s
* t
a = v/t = 25/8.4 m/s^2 = 2.97 = 3m/s^2
acceleration:
S = 1/2 * a * t ^2
Do it yourself
@SevenOfNo Please help me and solve all the tasks I need urgently would be very nice
Yeah, the unit’s a meter.
m/(s*s) * s = m/s
Please solve all the tasks that are important for the exam would be very nice..
Yes, but thank you for the following:
S = 1/2*2.97*8.4^2 = 104.7 m/s^2 is that right??
Ask chatgpt this has always given me good answers at mathe scheis.
🤣🤣
Ne chat gpt you can’t rely on
A1:
You have v and t. So where’s the problem?
a calculation
then calculate s.