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

Answer:

1-45 min

Explanation:

first of all this is not sufficient because you have given masses not weight plus where its moving the surface also needs to be clear and if you say no friction from ground we need to know the shape of the object plus the drag applied.

(1000÷200)*20m÷s

Answer 2

Answer:

t = 100 sec

Explanation:

given,

m = 1000 kg

F = 200 N

u = 0 ( body at rest)

v = 20 m/s

FORMULA USED :

F = ma

v = u+at

from F = ma

200 = 1000 x a

a = 0.2 m/s^2

from v = u+at

20 = 0 + 0.2 x t

t = 20 ÷ 0.2

t = 100 sec