Question

Question no 2

If a body of mass 5 kg is moving due to the constant force 10 N and the body displaces by 10 m then calculate
i)the acceleration of the body
ii) the velocity of it after covering 10 m .
iii) the work done. Is it positive or negative​

Answer 1

Answer:

what

Explanation:

Answer 2

Answer:

Explanation:

Force, F=10N

Mass, m=5Kg

Force,

F=ma

a=2m/s  

2

 

Work done, W=F.ds

In first second, displacement,

s=  

2

1

​  

at  

2

 

s=  

2

1

​  

×2×1

s=1m

So, work done,W=10×1=10J

In second second, s=  

2

1

​  

×2×4=4m

So, the displacement is , 4−1=3m

Hence, work done in 2 second is,

W=10×3

W=30J