At a waterpark, sleds with riders are sent along a slippery, horizontal surface

Question

At a waterpark, sleds with riders are sent along a slippery, horizontal surface by the release of a large, compressed spring. The spring with a force constant = 4500 and negligible mass rests on the frictionless horizontal surface. One end is in contact with a stationary wall. A sled and rider with total mass 72.0 are pushed against the other end, compressing the spring 0.380 . The sled is then released with zero initial velocity. What is the sled's speed when the spring returns to its uncompressed length?

Explanation / Answer

this is a problem of energy conservation potential energy of spring at time of releasing the mass=kinetic energy of mass at spring uncompressed length kx^2/2=mv^2/2 4500*(0.380)^2=72*v^2 v=3m/sec

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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