what is an example i can use that involves all three of the newtons law's and it has to deal with sporting events

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

When an object is heated it contracts. a. true b. false

Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.