Question

The velocity of a moving object changes from 20 m/s to 60 m/s in 10 s.
a) What is the initial velocity of the object?​

Answer 1

Answer:

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Step-by-step explanation:

Given:

Initial velocity (u) = 20 m/s

Final velocity (v) = 60 m/s

Time taken (t) = 10 s

To Find:

Acceleration (a)

Explanation:

Substituting value of v, u and t in the equation:

Acceleration (a) = 4 m/s²

Answer 2

The initial velocity of the object = 20m/s.

Step by step calculations:

Given

• Initial velocity (u)= 20m/s
• Final velocity(v) = 60m/s
• Time(t) = 10 seconds

Using the relation,  v = u + at

Substituting the values in the above expression

         60 = 20 + a x 10

         a = (60 -20) /10

         a = 4m/s²

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