Question

8. A body starts from rest and moves with a uniform acceleration of 5 m/s2. What is its velocity after 10s?​

Answer 1

Answer:

v=50 m/s

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Answer 2

When a body starts from rest:

• Initial velocity = u = 0

Also, it's given that

• Acceleration = a = 5m/s²
• Time = t = 10 s

We are supposed to find the final velocity i.e. 'v'

Applying First Equation of motion,

v = u + at

⇒ v = 0 + 5(10)

⇒ v = 0 + 50

⇒ v = 50 m/s

∴ The final velocity of the object is 50 m/s

KNOW MORE:

• Second Equation of Motion states that

S = ut + ½ at²

• Third equation of motion states that

v² = u² + 2as