Question

Q.3 A body of mass 5 kg is moving with a uniform velocity of 10
m/s. It is acted upon by a force of 20 N. What will be its velocity
after 1 second?
con 1.2 en mass​

Answer 1

Explanation:

given data

f= 20N

u= 10

v=?

t=1sec

m=5kg

f= ma

20= 5*a

acceleration= 4m/s²

now according to Newton's 1st equation of motion

v= u+at

v= 10+4*1

v= 14 m/s