Question

Basic: iv) A body of mass 1 kg moves with an initial velocity of 15 m/s. If its velocity changes to 25 m/s in 5 seconds, find the force acting on the body. ​

Answer 1

Given :

• ➻ A body has the mass of 1 kg moves with an initial velocity of 15 m/s. If its velocity changes to 25 m/s in 5 seconds .

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To Find :

• ➻ Force acting on the body.

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Solution :

$\large{\green{✇}}$Formula Used :

$\large{\color{cyan}{\bigstar}} \: \: {\underline{\boxed{\color{red}{\sf{ F = M\bigg\lgroup{ \dfrac{v - u}{t} }\bigg\rgroup }}}}}$

Where :

• ➵ F = Force
• ➵ M = Mass
• ➵ v = Final velocity
• ➵ u = initial velocity
• ➵ t = Time

$\qquad{━━━━━━━━━━━━━━━━━━━━}$

$\large{\green{✇}}$Calculating the Force :

${:\longmapsto{\qquad{\sf{ F = M\bigg\lgroup{ \dfrac{v - u}{t} }\bigg\rgroup }}}} \\ \\ \ {:\longmapsto{\qquad{\sf{ F = 1\bigg\lgroup{ \dfrac{25 - 15}{5} }\bigg\rgroup }}}} \\ \\ \ {:\longmapsto{\qquad{\sf{ F = 1\bigg\lgroup{ \dfrac{10}{5} }\bigg\rgroup }}}} \\ \\ \ {:\longmapsto{\qquad{\sf{ F = 1\bigg\lgroup{ \cancel\dfrac{10}{5} }\bigg\rgroup ^2}}}} \\ \\ \ {:\longmapsto{\qquad{\sf{ F = 1 \times 2 }}}} \\ \\ \ {\qquad{\pink{\leadsto{\underline{\underbrace{\sf{ Force \: = {\color{blue}{\sf{ 2 \: N}}}}}}}}}}$

$\qquad{━━━━━━━━━━━━━━━━━━━━}$

$\large{\green{✇}}$Therefore :

❝ The force acting on the object is 2 Newton. ❞

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Answer 2

$\huge\pink{Question:-}$

• A body of mass 1 kg moves with an initial velocity of 15 m/s. If its velocity changes to 25 m/s in 5 seconds, find the force acting on the body.

$\huge\green{To \: Find :-}$

• Force acting on the body.

$\huge\blue{Solution : }$

$\small\red{F =m( \frac{v - u}{t} )}$

$force = 1( \frac{25 - 12}{5} )$

$force = 1 \times \frac{10}{15}$

$force = 1 \times 2$

$force = 2$

Hence,

• The force acting on the object is 2 Newton.

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Remember,

1. F = Force
2. M = Mass
3. V = Final Velocity
4. U = Initial velocity
5. T = Time

$\huge\red{Thank \: You}$