Question

A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 2 kg ball of putty at rest. What is the final magnitude and direction of the velocity of the stuck together balls after the collision?

Answer 1

Answer:1.2 m/s

Step-by-step explanation:

mass of ball
``(m_1)=2 kg``

initial Velocity of
`m_1=3 m/s``

mass of another ball
`(m_2)=2 kg``

initial velocity of
`m_2=0``

Conserving momentum

`m_1u_1+m_2u_2=(m_1+m_2)v``

`2* 3+2* 0=(2+3)v``

`v=(6)/(5)=1.2 m/s``