Question

The mass of an object is 40kg ,the
force required to get an acceleration
of 2m/s2 is​

Answer 1

∴F=(2kg)×(3ms2). ∴F=6kgms2=6 Newton. =6N. Therefore, Force required to accelerate the body is 6N.

Answer 2

Explanation:

Given,

Mass=40kg,v=1m/s,v=2m/s

According to the work-energy conversion theorem;

Work done by the force= Change in Kinetic energy,

Work done by the force =(

2

1

)×m×(v

2

−u

2

)

Work done =0.5×40×(4−1)=60J