Question

a certain force exerted for 1.2 seconds raises the speed of an object from 1.8m/s to 4.2m/s . find its acceleration​

Answer 1

Initial velocity (u) = 1.8 m/s

Final velocity (v) = 4.2 m/s

Time (t) = 1.2 s

Acceleration (a) = (v-u)/t

a = (4.2-1.8)/1.2

a = 2.4/1.2

Acceleration = 2m/s²

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