GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
A car joins a road at a speed of 14 m / s and accelerates at 4.0 m / s2 for 5.0 seconds. What is the final speed of the car?
|
|
18 m / s
|
|
|
20 m / s
|
|
|
32 m / s
|
|
|
34 m / s
|
Explanation:
Detailed explanation-1: -Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.
Detailed explanation-2: -Thus, the acceleration is 2m/s2 2 m / s 2 .
Detailed explanation-3: -What is the velocity of the car after 4 seconds? (Answer: 16 m/s.
There is 1 question to complete.