Question

A body of mass 1000kg at rest is acted on by a force 200N. How much time is required for the body to acquire a velocity 20m/sec?

Answer 1

Hey brainly user

Here is your answer

Given,

mass =1000kg

force =200 N

u =0

v=20 m/s

F=ma

F= m(v-u) /t

200=1000(20)/t

t=1000×20/200

t= 100 sec

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Answer 2

Hey there!

Given,

Mass (m) = 1000 kg

Force(F) = 200 N

Initial velocity (u) = 0

Final velocity(v) = 20 m/s

We know,

Force = mass * acceleration

Now,

Acceleration = (v - u) / t

                     = (20 - 0) / t

                     = (20 / t) m/s²

And,

F = m * a

200 = 1000 * 20 / t

t = 1000 * 20 / 200

t = 100 seconds

Hence, Time taken by body to acquire velocity of 20 m/s is 100 sec.