A 1 kg cart, rolling with negligible friction at 6 m/s,collides with and sticks

Question

A 1 kg cart, rolling with negligible friction at 6 m/s,collides with and sticks to an identical cart that's initially atrest. So, after colliding, the carts roll together as asingle, 2 kg unit. How fast does the pair of cartsroll? I am confused about what to do. I thought I knew what todo but I keep getting it wrong. A 1 kg cart, rolling with negligible friction at 6 m/s,collides with and sticks to an identical cart that's initially atrest. So, after colliding, the carts roll together as asingle, 2 kg unit. How fast does the pair of cartsroll? I am confused about what to do. I thought I knew what todo but I keep getting it wrong.

Explanation / Answer

m1= m2= 1kg u1= 6m/s u2= 0m/s from the conservation of momentum m1u1+ m2u2=(m1+m2)v v = m1u1/m1+m2     = 1kg * 6m/s/2kg = 3m/s     = 1kg * 6m/s/2kg = 3m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.