On the following question I\'m stuck on starting it, I\'m not sure what equation

Question

On the following question I'm stuck on starting it, I'm not sure what equation to use or exactly how to solve it so any help would be greatly appreciated! Thanks!!
A 90 kg fullback running east with a speed of 5 m/s is tackled by a 95 kg opponent running north with a speed of 3 m/s. Noting that the collision is perfectly inelastic, (a) calculate the speed and direction of the players just after the tackle and (b) determine the mechanical energy lost as a result of the collision. Account for the missing energy. On the following question I'm stuck on starting it, I'm not sure what equation to use or exactly how to solve it so any help would be greatly appreciated! Thanks!!
A 90 kg fullback running east with a speed of 5 m/s is tackled by a 95 kg opponent running north with a speed of 3 m/s. Noting that the collision is perfectly inelastic, (a) calculate the speed and direction of the players just after the tackle and (b) determine the mechanical energy lost as a result of the collision. Account for the missing energy.

Explanation / Answer

The initial momentum of player 1 is p1 = (90 kg)(5 m/)s i = 450 kgm/s i.
The initial momentum of player 2 is p2 = (95 kg)(3m/s) j = 285 kgm/s j.
Momentum is conserved, the final momentum p of both players is p = p1 + p2.

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

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