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1 A body is moving with a velocity of 10 m/s. If it starts accelerating withthe rate of 2.5 ms? Find out its velocity after 10 s.​

Answer»

<U>Given :

  • INITIAL velocity of BODY , u = 10 ms⁻¹
  • acceleration of body = 2.5 ms⁻²
  • Time = 10 s

To find :

  • velocity of body after 10 seconds , v = ?

FORMULA used :

First equation of motion

  •  v = u + a t

( where u is initial velocity , a is acceleration , v is final velocity and t is time )

Calculation :

Using first equation of motion

→ v = u + a t

→ v = (10) + (2.5) (10)

→ v = 10 + 25

→ v = 35 ms⁻¹

Therefore,

Velocity of body after 10 seconds will be 35 ms⁻¹.


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