Question

The acceleration of a body is 3m/s2, what does it mean? What is the acceleration of a body moving with a uniform velocity, why? A car moving with the velocity of 15 m/s comes to rest after 5 seconds. Calculate its acceleration.

Answer 1

Answer:

wait buddy i wil give you the answer

Answer 2

Answer:

It means that the velocity increases by 3m/s every second

The acceleration is 0 if it has uniform velocity

u = 15 m/s

v = 0m/s as it comes to rest!

t = 5

formula = a = v-u/t

a = 0-15/5

a = -15/5

a = -3m/s^2

so it is deceration as the value is negative

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