Question

a body of mass 6 kg is acted on by a force so that its velocity change from 3 to 3 metre per second to 5 M per second then change in momentum is

Answer 1

1)  A 5.0 kg mass has its velocity change from 8.0 m/s east to 2.0 m/seast.  Find the objects change in momentum.

 

m = 5.0 kg
Vi = 8.0 m/s East
Vf = 2.0 m/s East
Δp = ?

 

 

J = Ft = mΔv =Δp

 

 

Δp = mΔV

 

 

= (5.0 kg)(2.0 m/s - 8.0 m/s)

 

= -30. kgm/s East

 

or +30. kg m/s West