Question

in initial velocity 2m/s and the final velocity is zero time is 10 seconds. what's the acceleration
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Answer 1

Answer:

u = 2

v = 0

t = 10

First Equation of Motion

v = u + at

0 = 2 + 10a

10a = -2

a = -2/10

a = -0.2m/s^2

Answer 2

Given :-

• Final Velocity = 0 m/s
• Initial Velocity = 2 m/s
• Time taken = 10 seconds

To Find :-

• Acceleration of the body = ?

Answer :-

• Acceleration = 40 m/s²

Explaination :-

By using first equation of motion we get :

• v = u + at

Where, v is Final Velocity , u is Initial Velocity and t is time taken.

Now, Substituting the given values in above equation :

→ 0 = 2 + a(10)

→ 2 + 10a = 0

→ 10a = -2

→ a = -2 ÷ 10

→ a = -0.2 m/s²

Therefore,acceleration produced by the body is -0.2 m/s².

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Some other Formulas :

$\sf Speed = \dfrac{Distance}{Time}$

$\sf Area = Length \times Breadth$

$\sf Acceleration = \dfrac{Velocity}{Time}$

$\sf Density = \dfrac{Mass}{Volume}$

$\sf v = u + at$

$\sf v^{2} - u^{2} = 2as$

$\sf S = ut + \dfrac{1}{2} at ^{2}$

$\sf Force = Mass \times Acceleration$

$\sf Momentum = Mass \times Speed$