Question

A body attains a velocity of 25m/s in 2s with an acceleration of 4m/s2.the displacement of the body is .

Answer 1

Answer:

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Answer 2

Answer:

First find initial velocity of body

u = v - at

= 25 m/s - (4 m/s² × 2 s)

= 17 m/s

Now,

Use equation of motion

v² - u² = 2aS

S = v² - u² / (2a)

= [(25 m/s)² - (17 m/s)²] / (2 × 4 m/s²)

= 42 m

∴ Displacement covered by body is 42 m

Explanation:

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