# Physics

The launching mechanism of a toy gun consists of a spring of unknown spring constant, as shown in Figure P5.33a. If its spring is compressed a distance of 0.140 m and the gun fired vertically as shown, the gun can launch a 24.0 g projectile to a maximum height of 26.0 m above the starting point of the projectile.
(a) Neglecting all resistive forces, determine the spring constant.
(b) Neglecting all resistive forces, determine the speed of the projectile as it moves through the equilibrium position of the spring (where x = 0).

1. 👍 0
2. 👎 0
3. 👁 706
1. energy in spring= change in PE of projectile

1/2 k (.140)^2=.024*g*26

solve for k.

SPeed? 1/2 k (.140)^2=1/2 m v^2

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Physics

A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then

asked by Eden on October 17, 2010
2. ### Physics

A child's game consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. By compressing the spring, the child can launch the ball up the ramp. The spring has a

asked by rachel on November 7, 2008

A light spring of constant k = 170 N/m rests vertically on the bottom of a large beaker of water. A 5.70 kg block of wood (density = 650 kg/m3) is connected to the spring and the mass-spring system is allowed to come to static

asked by julie on December 20, 2010
4. ### Physics

A cork gun contains a spring whose spring constant is 18.0 N/m. The spring is compressed by a distance ∆X = 6.0 cm and used to propel a cork of mass 7.66 g from the gun. Assuming the cork is released when the spring passes

asked by Lina on December 17, 2013
1. ### Physics

A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x_c. The spring has spring constant k. The incline makes an angle theta with the horizontal and

asked by Trevor on March 13, 2011
2. ### Physics

A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. (Intro 1 figure) The spring has a spring constant k, the ball has a mass m, and the

asked by Sam on October 31, 2008
3. ### Basic Physics

There is a rocket on a stage connected a spring with the spring constant k(N/m). The weights of the rocket and the stage are m(kg) and M(kg), respectively. The length of the spring without the stage and rocket or free is h0(m) and

asked by Sarwar on March 2, 2015
4. ### physics-energy

A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How

asked by nate on February 19, 2010
1. ### Physics

A spring of unknown force constant is attached to a rod so that it hangs vertically. With no mass attached, the spring has a length of 12.0 cm. When a student attaches a mass of 50 grams, the spring stretches to a length of

asked by Chris on March 3, 2014
2. ### Physics - Spring Gun

A toy gun uses a spring to shoot a ball with a mass of 5.0 g. The spring is “loaded” by compressing it 5.0 cm and has a spring constant of 288 N/m. The end of the spring is at the end of the gun (the ball does not travel any

asked by Sam on October 13, 2014
3. ### Physics

A heavy-duty stapling gun uses a 0.162-kg metal rod that rams against the staple to eject it. The rod is pushed by a stiff spring called a "ram spring" (k = 32657 N/m). The mass of this spring may be ignored. Squeezing the handle

asked by Leah on November 13, 2011
4. ### physics

The spring of a spring gun is compressed a distance d of 3.2 cm from its relaxed state, and a ball of mass m = 12g is put in the barrel. With what speed will the ball leave the barrel once the gun is fired? The spring constant is

asked by Anna on November 2, 2017