Question
A car going at 30 m/s undergoes an acceleration of 2m/s squared for 4 seconds. What is it's final speed? How far did it travel while it was accelerating?
Answers
drwls
V(t) = Vo + a*t
X(t) = Vo*t + (1/2)a*t^2
Learn them and use them.
t = 4. Vo = 30 m/s a = 2 m/s^2
BTW, drop the apostrophe in it's.
X(t) = Vo*t + (1/2)a*t^2
Learn them and use them.
t = 4. Vo = 30 m/s a = 2 m/s^2
BTW, drop the apostrophe in it's.
Faith
2 m/s^2=?-30m/s^2/4s
?-30=4*2
?-30=8
?=8+30=38
1st speed=38m/s
?-30=4*2
?-30=8
?=8+30=38
1st speed=38m/s
Bob
A certain airplane has an acceleration of 15.0 m/s2
How fast will it be moving2.5s after it starts down runway
How far down runway during the 2.5s
How fast will it be moving2.5s after it starts down runway
How far down runway during the 2.5s
Big House
The first speed is 38m/s