As per the given question,
mass of the Hobbes (m)=28.4kg
mass of the little boy kelvin(m1)=17.7kg
Speed of the Hobbes (u)=9.2 m/sec
Speed of the kelvin (u1)=12m/sec
They are running opposite to each other and after the collision, they are getting stick, let the final speed becomes V,
Now, applying the conservation of momentum,
⇒mu+m1u1=(m+m1)V
Now, substituting the values, in the above,
⇒V=28.4+17.728.4×9.2−17.7×12 m/sec
⇒V=46.148.88m/sec
V=1.06m/sec
Comments
Leave a comment