A spring-loaded toy gun is used to shoot a ball of mass m=1.50kg straight up in

Question

A spring-loaded toy gun is used to shoot a ball of mass m=1.50kg straight up in the air, as shown in the figure.(Figure 1) The spring has spring constant k=667N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position y=0 and then released, the ball reaches a maximum height hmax (measured from the equilibrium position of the spring). There is no air resistance, and the ball never touches the inside of the gun. Assume that all movement occurs in a straight line up and down along the y axis. Which of the following statements is true: a) Mechanical energy is conserved. b) The forces of gravity and the spring have potential energies associated with them. c) No conservatives forces act in this problem after the ball is released.

Explanation / Answer

a) Mechanical energy is conserved. b) The forces of gravity and the spring have potential energies associated with them.

Both statements are correct or ture.

Last statement is false because gravity is a conservative force which applies after ball is released.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

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