Question

A bicycle increasas its velocity form 10 km per hour to 15 km per hour in 6 seconds calculate its acceleration

Answer 1

Brainly.in

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thakurabhayyy

Secondary SchoolPhysics 8+4 pts

A bicycle increases its velocity from 10 km/h to 15 km/h in 6 seconds calculate the acceleration.

Comments (1) Report by Sm6m2eherakshi 26.04.2017

jagtarchohan

Answer is 3000km/h

Answers

Deepikakvvk06 Maths AryaBhatta

HI there !!

Initial velocity = u = 10 km /hr

= 10 x 5 /18

= 2.77777

= 2.8 m /s

Final velocity = v = 15 km / hr

= 15 x 5 / 18

= 4.16 m /s [ approx .]

Time = t = 6 sec

a = acceleration

Equation of motion :

v = u + at

4.16 = 2.8 + 6a

6a + 2.8 = 4.16

6a = 4.16 - 2.8

6a = 1.36

a = 1.36 / 6

a = 0.22 m /s²

Answer 2

Aɴꜱᴡᴇʀ

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

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Gɪᴠᴇɴ

Initial velocity of bicycle = 10kmph

Final velocity of bicycle = 15kmph

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