Answer:
11.6mph South East
Explanation:
Given parameters:
Time = 2.25hrs
Displacement = 26.2miles south east
Unknown:
Velocity = ?
Solution:
Velocity is the displacement divided by the time taken. It is a vector quantity with both magnitude and direction.
Now;
Velocity =
Velocity = = 11.6mph South East
Answer:
Time taken, t = 4.86 seconds
Explanation:
Given that,
Acceleration of a particular automobile,
Initial speed of the automobile, u = 75 km/h = 20.83 m/s
Final speed of the automobile, v = 110 km/h = 30.55 m/s
We need to find the time taken to accelerate from u to v. Let t is the time taken. It can be calculate as :
t = 4.86 seconds
So, the time taken by the automobile is 4.86 seconds. Hence, this is the required solution.