A car going 72.0 km/h (20.0 m/s) slows down to 36.0 km/h (10.0 m/s) in 5.00 seconds. Calculate the acceleration in m/s^2

Given:

Initial velocity (u) = 20 m/s

Final velocity (v) = 10 m/s

Time taken (t) = 5 seconds

To Find:

Acceleration (a) of the car

Explanation:

From equation of motion we have:

By substituting value of v, u & t in the equation we get:

Acceleration (a) of the car = -2 m/s²

transverse waves oscillate in one direction while traveling in another. compressional, or longitudinal waves, oscillate “three steps forward, two steps back” in the same direction as the overall direction of travel.

scientific laws are the result of testing theories and proving them to be facts.