Question

An object moving with the initial velocity of 6m/s having a mass
25g. What will be the value of work done on the object to increase its velocity by 14 m/s.​

Answer 1

$\Huge{\underline{\underline{\blue{\mathfrak{Answer :}}}}}$

• Initial Velocity (u) = 6 m/s
• Mass of object = 25 g
• Final Velocity (v) = 14 m/s

Mass = 25g => 0.025 kg

As,

$\implies {\underline{\boxed{\red{\huge{\sf{Work \: = \: \frac{1}{2} \: mv^{2}}}}}}}$

As we know that,

Velocity = Final velocity - initial velocity

[Putting Values]

⇒ W = ½ * (0.025)(14 - 6)

⇒W = ½ * (0.025)(8)

⇒W = ½ * (0.2)

⇒W = 0.1

$\Large{\boxed{\red{\sf{Work \: = \: 0.1 \: J}}}}$