Question

an objects of mass 5 kg move in a stairght line whit constant speed of 10 m/s .what is resultant force
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Answer 1

Answer:

Explanation:

Given Data:-

mass= 5kg

Initial velocity= 10 m persecond

Final Velocity= 0

Time= 2s

Required:-

F=?

Solution:-

First of all. To find acceleration we use first equation of motion.

a= vf - vi/ t

a= -5 m persecond square

Now Using Newton's second law of motion.

F= ma

F= -25N. The negative sign indicate that the force required to stop the body would be opposite to direction of the body.