If a truck moves at 40 km/h within 6-h travel, how will you describe its acceleration?

6.67km/hr²

Explanation:

Given parameters:

Velocity  = 40km/h

Time  = 6h

Unknown:

Acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time.

  Acceleration  =  

v is the final velocity

u is the initial velocity

t is the time

    Acceleration  =   = 6.67km/hr²

a and c

c is 100% but i am confused in a

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.