Question

The velocity of a body moving at an initial speed of 20 m/s and having an acceleration of 4 m/s2 after 2 second will be
(a) 24 m/s
(b) 28 m/s
(c) 32 m/s
(d) 40 m/s​

Answer 1

Answer:

24 m/s

Step-by-step explanation:

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Answer 2

Answer:

❒ Given

• The velocity of a body moving at an initial speed of 20 m/s and having an acceleration of 4 m/s2 after 2 second will be

$\large{} \bf \underline\color{purple}{❒ }$Options

• (a) 24 m/s
• (b) 28 m/s
• (c) 32 m/s
• (d) 40 m/s

❒ To Find

• "Acceleration of 4 m/s2 after 2 second will be?."

$\large{} \bf \underline\color{red}{❒ }$Solution

❒ Given That,

• Initial speed of the body = 20 m/s.

• Acceleration = 4 m/s.

• Time = 2 s.

Using the first equation of motion :

$\tt\large\underline{\longmapsto \: v=u+at}$

$\tt\large\underline\orange{\longmapsto v= 20 + 4×2}$

$\tt\large\underline{\longmapsto \: v = 20 + 08}$

$\tt\large\underline{\longmapsto v = 28 m/s}$

$\tt\large\underline\green{❒Therefore,}$

"The velocity of the body after 2 s will be 28 m/s."