Question

A car acquires a velocity of 72 km per hour in 10 seconds starting from rest find a the acceleration be the average velocity see the distance travelled in this time

Answer 1

Hey mate!

Here's your answer!!

Initial velocity (u)=0
(object started from rest)

Final velocity (v)=72km/h = 20m/s

Acceleration (a) = v-u / t

= 20-0/10

= 2m/s²

Displacement(s) = 2as = v² - u²

2 × 2 × S= 400

or s = 100m

Average velocity = Displacement / Time

100/10 = 10m/s.

$hope \: it \: helps \: you.$
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#BE BRAINLY

Answer 2

72km/hr=72×1000÷3600=20 m/s
Acceleration= (v-u)÷t=( 20-0)÷10=2 m/s2
Avg. Velocity=(0+20)÷2=10 m/s
Dist. Travelled =s
S=ut +1/2at2=0+10+1/2×2×100=100 m