Question

A toy car accelerates 3m/s to 5m/s in 5 seconds. What is acceleration?

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Answer 1

Answer:

2m/s is acceleration.

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Answer 2

Given: the initial velocity of the toy car, u = 3 m/s

           the final velocity of the toy car, v = 5 m/s

           the time taken by the toy car, t = 5 s

To Find: the acceleration of the toy car, a.

Solution:

To calculate a the formula used:

• v = u +at                          ⇒ First Law of Motion Equation
• Here, u is the initial velocity

        v is the final velocity

        a is the acceleration

        t is the time taken

Applying the above formula for a:

v = u + at

v - u = at

5 - 3 = a x 5

a x 5 = 5 - 3

a x 5 = 2

    a  =2 / 5

        = 0.4

    a  = 0.4 m/s²

Hence, the acceleration of the toy car is 0.4 m/s².