Question

a force applied to an object of mass 400g changes it's velocity from 3ms+1 to 4ms-1 in 10 s. calculate the magnitude of force​

Answer 1

Answer:

25ms

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Answer 2

Acceleration = v-u/t = 4 - 3/10 = 1/10 m/s

Force = Mass x Acceleration

Mass is in g = 400 g

400 g into kg .

1kg = 1000 g

___ kg = 400 g

= 400/1000 kg = 0.4 kg.

Force = 0.4 x 1/10 = 0.04 Newtons.