Question

A vehicle moves in a straight line with an
acceleration of 5 km/h2.
By how much does the speed change each
second?
Answer in units of km/h.

Answer 1

a=(v-u)/t
at=v-u.
let u=0, and sub t=1.

Answer 2

so, a=(5-0)/1

a=5 ?

Answer 3

a=5 (given)
\(at=v-u=\Delta v\)

Answer 4

chage in speed= final velocity- initial velocity

Answer 5

5 km/h² = (5 km/h) / h = (5 km/h) / 3600 s = 5/3600 (km/h)/s

\(\Delta v\) = 0.0014 km/h in one second