Question

a constant force of 50N is applied on a body of 20kg.which is initially at rest find its velocity after 4 seconds of its motion.
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Answer 1

Answer:

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Step-by-step explanation:

F=50N,m=20kg,u=0,t=4secs

we know that f=ma,so a=f/m

a=50/20=2.5m/s2

and v=u+at,

v =0+2.5×4

=10m/s

Answer 2

Step-by-step explanation:

see the explanation and answer above.