Question

0.1. Force acts on an object of mass 4 kg and changes its velocity from 10 m/s to 20 m/s in 5 second find the magnitude of force

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Answer 1

Answer:

m= 4kg

a= v-u/t

=20-10/5

= 2m/s^2

so,

F= m.a

=4*2 N

= 8N