Question

A bicycle increase its velocity from 10 km / h to 15 km/ h in 6 second calculate its acceleration

Answer 1

Dear mate :)

Here's ur answer

Given,
u = 10km/h
= 2.778m/s

v = 15km/h
= 4.167m/s

t = 6 sec

From 1st eqn of motion
$v = u + at$
So,
$a = (v - u) \div t$
Putting values:

a = 4.167 - 2.778 / 6
a = 1.389 / 6
a = 0.2315 m/s²

Hope it helps

Answer 2

Aɴꜱᴡᴇʀ

$\huge{\sf\red{a=3.706{ms}^{2}}}$

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Gɪᴠᴇɴ

1. Initial velocity of bicycle = 10kmph
2. Final velocity of bicycle = 15kmph
3. Time interval = 6s

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ᴛᴏ ꜰɪɴᴅ

Acceleration of the bicycle

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Sᴛᴇᴘꜱ

We know that,

Acceleration is defined as ratio of change in velocity to the time interval.

Converstion :-

• 1kmph = 5/18mps

• 15kmph = 4.17mps

• 10kmph = 2.78mps

Then,

$\begin{lgathered} \boxed{\sf\:a=\dfrac{v-u}{t}}\\ \\ \leadsto\sf\:a=\dfrac{4.17-2.78}{6}\\ \\ \dashrightarrow\:{\sf{\pink{\large{a=3.706\:ms^{-2}}}}}\end{lgathered}$

$\large \tt \bigstar{}Additional \: information$

• Acceleration is a vector quantity.

• Accelerataion has both magnitude as well as direction.

• Acceleration can be positive, negative and zero.

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$\huge{\mathfrak{\purple{hope\; it \;helps}}}$