What is the acceleration of a car that has a velocity of 20 m/s, and
increase to a velocity of 70 m/s in 5 seconds?

Acceleration of Car = 10 ms⁻²

Explanation:

Step 1:

The basic formula of acceleration is a = (v-u)/t  ms⁻²

where, v- final velocity

            u- initial velocity

             t= time taken

Step 2:

Here v = 70 ms⁻¹

        u = 50  ms⁻¹

         t = 5 s

∴ a = ( 70 - 20)/5

a = 10 ms⁻²

the correct answer is c.stops after infancy and childhood.

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explanation: