karnbhawana9 karnbhawana9

Today at 7:34 PM
Mathematics

Answered

A car speed increases from 40 km/hr to km/hr in 5 sec. Calcuate the acceleration of car:

Answer :

andromache andromache

Today at 7:39 PM

Answer:

14400km/h

Step-by-step explanation:

Given that

The speed of the car increased from 40 km/hr to 60 km/hr

And, the time taken is 5 seconds

we need to find out the acceleration of the car

So,

Here

u = initial velocity =40km/h

v = final velocity =60km/h

t = time = 5s =5 ÷ 3600h

a = acceleration

Now as we know that

a = (v - u) ÷ t

= (60 - 40) ÷ (5 ÷ 3600)

= (20 × 3600) ÷ 5

= 14400km/h

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