Question

An object is moving from A to B along the curved path of radius 50m in 10 seconds. calculate the speed and velocity of object​

Answer 1

Given:

• Radius =50m

•Time =10 seconds

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To Find :

• Speed=?

• velocity =?

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Formulas :

$\\ \red \bigstar \sf \: distance = \frac{perimeter \: of \: circle}{2}$

$\\ \red \bigstar \sf \: speed = \frac{distance}{time}$

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Solution :

➡ Values : •Radius =50m, • Time=10 second

$\\\ \implies\sf{Distance \: from \: A \: to \: B =\dfrac{Perimeter \: of \: circle}{2}}$

$\\ \implies\sf{Distance \: from \: A \: to \: B=\dfrac{2 \pi r}{2}}$

$\\ \implies\sf{Distance \: from \: A \: to \: B=\pi r}$

$\\ \implies\sf{Distance \: from \: A \: to \: B=\pi 50}$

$\\ \implies\sf{Distance \: from \: A \: to \: B=3.14 \times 50}$

$\\ \implies\sf{Distance \: from \: A \: to \: B=157m}$

$\\ \implies \sf \: speed = \frac{distance}{time} \\ \\ \implies \sf \: speed = \frac{157m}{10s} \\ \\ \implies \sf \: speed = 15.7 \frac{m}{s}$

$\\ \implies\boxed{\sf{Speed=15.7ms^{-1}}}$

Answer 2

Explanation:

speed=15.7 ms-¹

hope it will help you