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A particle traveling at 7.4 m/s decelerates at 1.3 m/s 2 . How long will it take to get back to the starting point?

Respuesta :

Answer:

Time taken, t = 5.69 seconds

Explanation:

It is given that,

Initial speed of the particle, u = 7.4 m/s

Deceleration of the particle, [tex]a=-1.3\ m/s^2[/tex]

We need to find the time taken by it to get back to the starting point. Let t is the time taken. So,

[tex]v=u+at[/tex]

[tex]t=\dfrac{v-u}{a}[/tex]

[tex]t=\dfrac{0-7.4}{-1.3}[/tex]

t = 5.69 seconds

So, the time taken by the particle is 5.69 seconds. Hence, this is the required solution.