Question

A jack-in-the-box present. this type of toy contains a spring must be compressed into the box of the toy. if the spring constant is 750n/m is compressed by 10.5 cm and the toys closed what is the speed of the toy if it has a mass of 0.5kgwhen the stretch 7.0 cm big box

Answer 1

Dose this help

spring constant of toy spring, k = 30000 N/m

compression in the spring, x = 4 cm = 0.04 m

mass of plastic dart, m = 45 g = 0.045 kg