Question

a bus accelerates uniformly from 36 km per hour to 54 km per hour in 10 seconds calculate acceleration​

Answer 1

Answer:

Acceleration a = (v - u)/t = (15 - 10)/10 = 5/10 = 0.5 m/s²

Answer 2

QUESTION:-

a bus accelerates uniformly from 36 km per hour to 54 km per hour in 10 seconds calculate acceleration​

EXPLANATION:-

• Final velocity(v)=54 km/hr
• Initial velocity(u)=36 km/hr
• Time taken(t)=10 s
• Acceleration=??

UNIT CONVERSION:-

We know that:-

$\implies\boxed{\sf\red\;1\;km/hr=\frac{18}{5}\;m/s}$

Therefore,

54 km/hr=15 m/s

and 36 km/hr=20 m/s

FORMULA USED:-

$\implies\boxed{\sf\red\;a=\frac{v-u}{t}}$

CALCULATION:-

Putting the values in the formula we get:-

a=(v-u)/t

a=(20-15)/10

a=5/10

a=1/2

$\longrightarrow\boxed{\bigstar\sf\pink\;a=\frac{1}{2}\;m/s^2\;or\;0.5\;m/s^2\bigstar}$

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