Question

Hello brainlics :)
answer my question!!


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

Answer 1

hope it helps you bro/sis

Answer 2

Answer:

• Initial speed of the body = 20 m/s.
• Acceleration = 4 m/s.
• Time = 2 s.

Using the first equation of motion :

• ⇒ v = u + at
• ⇒ v = 20 + 4*2
• ⇒ v = 20 + 8
• ⇒ v = 28 m/s

Hence, the velocity of the body after 2 s will be 28 m/s.

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Important Formulas :

• v = u + at
• v² - u² = 2as
• s = ut + ½at²
• a = dv/dt
• v = ds/dt
• a = (dv/ds)v
• ∆x = x2 - x1

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